21215202480

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4027}}^1$

素因数の和:4326

約数の個数: 240

約数和(自身を含む): 74177585664

約数和(自身を除く): 52962383184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 271, 324, 360, 405, 432, 486, 540, 542, 648, 720, 810, 813, 972, 1080, 1084, 1215, 1296, 1355, 1620, 1626, 1944, 2160, 2168, 2430, 2439, 2710, 3240, 3252, 3888, 4027, 4065, 4336, 4860, 4878, 5420, 6480, 6504, 7317, 8054, 8130, 9720, 9756, 10840, 12081, 12195, 13008, 14634, 16108, 16260, 19440, 19512, 20135, 21680, 21951, 24162, 24390, 29268, 32216, 32520, 36243, 36585, 39024, 40270, 43902, 48324, 48780, 58536, 60405, 64432, 65040, 65853, 72486, 73170, 80540, 87804, 96648, 97560, 108729, 109755, 117072, 120810, 131706, 144972, 146340, 161080, 175608, 181215, 193296, 195120, 217458, 219510, 241620, 263412, 289944, 292680, 322160, 326187, 329265, 351216, 362430, 434916, 439020, 483240, 526824, 543645, 579888, 585360, 652374, 658530, 724860, 869832, 878040, 966480, 978561, 1053648, 1087290, 1091317, 1304748, 1317060, 1449720, 1630935, 1739664, 1756080, 1957122, 2174580, 2182634, 2609496, 2634120, 2899440, 3261870, 3273951, 3914244, 4349160, 4365268, 4892805, 5218992, 5268240, 5456585, 6523740, 6547902, 7828488, 8698320, 8730536, 9785610, 9821853, 10913170, 13047480, 13095804, 15656976, 16369755, 17461072, 19571220, 19643706, 21826340, 26094960, 26191608, 29465559, 32739510, 39142440, 39287412, 43652680, 49109265, 52383216, 58931118, 65479020, 78284880, 78574824, 87305360, 88396677, 98218530, 117862236, 130958040, 147327795, 157149648, 176793354, 196437060, 235724472, 261916080, 265190031, 294655590, 353586708, 392874120, 441983385, 471448944, 530380062, 589311180, 707173416, 785748240, 883966770, 1060760124, 1178622360, 1325950155, 1414346832, 1767933540, 2121520248, 2357244720, 2651900310, 3535867080, 4243040496, 5303800620, 7071734160, 10607601240, 21215202480]

約数ペア:

[(1, 21215202480), (2, 10607601240), (3, 7071734160), (4, 5303800620), (5, 4243040496), (6, 3535867080), (8, 2651900310), (9, 2357244720), (10, 2121520248), (12, 1767933540), (15, 1414346832), (16, 1325950155), (18, 1178622360), (20, 1060760124), (24, 883966770), (27, 785748240), (30, 707173416), (36, 589311180), (40, 530380062), (45, 471448944), (48, 441983385), (54, 392874120), (60, 353586708), (72, 294655590), (80, 265190031), (81, 261916080), (90, 235724472), (108, 196437060), (120, 176793354), (135, 157149648), (144, 147327795), (162, 130958040), (180, 117862236), (216, 98218530), (240, 88396677), (243, 87305360), (270, 78574824), (271, 78284880), (324, 65479020), (360, 58931118), (405, 52383216), (432, 49109265), (486, 43652680), (540, 39287412), (542, 39142440), (648, 32739510), (720, 29465559), (810, 26191608), (813, 26094960), (972, 21826340), (1080, 19643706), (1084, 19571220), (1215, 17461072), (1296, 16369755), (1355, 15656976), (1620, 13095804), (1626, 13047480), (1944, 10913170), (2160, 9821853), (2168, 9785610), (2430, 8730536), (2439, 8698320), (2710, 7828488), (3240, 6547902), (3252, 6523740), (3888, 5456585), (4027, 5268240), (4065, 5218992), (4336, 4892805), (4860, 4365268), (4878, 4349160), (5420, 3914244), (6480, 3273951), (6504, 3261870), (7317, 2899440), (8054, 2634120), (8130, 2609496), (9720, 2182634), (9756, 2174580), (10840, 1957122), (12081, 1756080), (12195, 1739664), (13008, 1630935), (14634, 1449720), (16108, 1317060), (16260, 1304748), (19440, 1091317), (19512, 1087290), (20135, 1053648), (21680, 978561), (21951, 966480), (24162, 878040), (24390, 869832), (29268, 724860), (32216, 658530), (32520, 652374), (36243, 585360), (36585, 579888), (39024, 543645), (40270, 526824), (43902, 483240), (48324, 439020), (48780, 434916), (58536, 362430), (60405, 351216), (64432, 329265), (65040, 326187), (65853, 322160), (72486, 292680), (73170, 289944), (80540, 263412), (87804, 241620), (96648, 219510), (97560, 217458), (108729, 195120), (109755, 193296), (117072, 181215), (120810, 175608), (131706, 161080), (144972, 146340)]