20122560

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 224

約数和(自身を含む): 75712320

約数和(自身を除く): 55589760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 135, 136, 137, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 270, 272, 274, 288, 306, 320, 340, 360, 408, 411, 432, 459, 480, 510, 540, 544, 548, 576, 612, 680, 685, 720, 765, 816, 822, 864, 918, 960, 1020, 1080, 1088, 1096, 1224, 1233, 1360, 1370, 1440, 1530, 1632, 1644, 1728, 1836, 2040, 2055, 2160, 2192, 2295, 2329, 2448, 2466, 2720, 2740, 2880, 3060, 3264, 3288, 3672, 3699, 4080, 4110, 4320, 4384, 4590, 4658, 4896, 4932, 5440, 5480, 6120, 6165, 6576, 6987, 7344, 7398, 8160, 8220, 8640, 8768, 9180, 9316, 9792, 9864, 10960, 11645, 12240, 12330, 13152, 13974, 14688, 14796, 16320, 16440, 18360, 18495, 18632, 19728, 20961, 21920, 23290, 24480, 24660, 26304, 27948, 29376, 29592, 32880, 34935, 36720, 36990, 37264, 39456, 41922, 43840, 46580, 48960, 49320, 55896, 59184, 62883, 65760, 69870, 73440, 73980, 74528, 78912, 83844, 93160, 98640, 104805, 111792, 118368, 125766, 131520, 139740, 146880, 147960, 149056, 167688, 186320, 197280, 209610, 223584, 236736, 251532, 279480, 295920, 314415, 335376, 372640, 394560, 419220, 447168, 503064, 558960, 591840, 628830, 670752, 745280, 838440, 1006128, 1117920, 1183680, 1257660, 1341504, 1676880, 2012256, 2235840, 2515320, 3353760, 4024512, 5030640, 6707520, 10061280, 20122560]

約数ペア:

[(1, 20122560), (2, 10061280), (3, 6707520), (4, 5030640), (5, 4024512), (6, 3353760), (8, 2515320), (9, 2235840), (10, 2012256), (12, 1676880), (15, 1341504), (16, 1257660), (17, 1183680), (18, 1117920), (20, 1006128), (24, 838440), (27, 745280), (30, 670752), (32, 628830), (34, 591840), (36, 558960), (40, 503064), (45, 447168), (48, 419220), (51, 394560), (54, 372640), (60, 335376), (64, 314415), (68, 295920), (72, 279480), (80, 251532), (85, 236736), (90, 223584), (96, 209610), (102, 197280), (108, 186320), (120, 167688), (135, 149056), (136, 147960), (137, 146880), (144, 139740), (153, 131520), (160, 125766), (170, 118368), (180, 111792), (192, 104805), (204, 98640), (216, 93160), (240, 83844), (255, 78912), (270, 74528), (272, 73980), (274, 73440), (288, 69870), (306, 65760), (320, 62883), (340, 59184), (360, 55896), (408, 49320), (411, 48960), (432, 46580), (459, 43840), (480, 41922), (510, 39456), (540, 37264), (544, 36990), (548, 36720), (576, 34935), (612, 32880), (680, 29592), (685, 29376), (720, 27948), (765, 26304), (816, 24660), (822, 24480), (864, 23290), (918, 21920), (960, 20961), (1020, 19728), (1080, 18632), (1088, 18495), (1096, 18360), (1224, 16440), (1233, 16320), (1360, 14796), (1370, 14688), (1440, 13974), (1530, 13152), (1632, 12330), (1644, 12240), (1728, 11645), (1836, 10960), (2040, 9864), (2055, 9792), (2160, 9316), (2192, 9180), (2295, 8768), (2329, 8640), (2448, 8220), (2466, 8160), (2720, 7398), (2740, 7344), (2880, 6987), (3060, 6576), (3264, 6165), (3288, 6120), (3672, 5480), (3699, 5440), (4080, 4932), (4110, 4896), (4320, 4658), (4384, 4590)]