281548080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 240

約数和(自身を含む): 1086359040

約数和(自身を除く): 804810960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 99, 110, 114, 120, 132, 144, 152, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 285, 304, 330, 342, 360, 380, 396, 418, 440, 456, 495, 528, 570, 627, 660, 684, 720, 760, 792, 836, 855, 880, 912, 990, 1045, 1140, 1254, 1320, 1368, 1520, 1584, 1672, 1710, 1871, 1881, 1980, 2090, 2280, 2508, 2640, 2736, 3135, 3344, 3420, 3742, 3762, 3960, 4180, 4560, 5016, 5613, 6270, 6840, 7484, 7524, 7920, 8360, 9355, 9405, 10032, 11226, 12540, 13680, 14968, 15048, 16720, 16839, 18710, 18810, 20581, 22452, 25080, 28065, 29936, 30096, 33678, 35549, 37420, 37620, 41162, 44904, 50160, 56130, 61743, 67356, 71098, 74840, 75240, 82324, 84195, 89808, 102905, 106647, 112260, 123486, 134712, 142196, 149680, 150480, 164648, 168390, 177745, 185229, 205810, 213294, 224520, 246972, 269424, 284392, 308715, 319941, 329296, 336780, 355490, 370458, 391039, 411620, 426588, 449040, 493944, 533235, 568784, 617430, 639882, 673560, 710980, 740916, 782078, 823240, 853176, 926145, 987888, 1066470, 1173117, 1234860, 1279764, 1347120, 1421960, 1481832, 1564156, 1599705, 1646480, 1706352, 1852290, 1955195, 2132940, 2346234, 2469720, 2559528, 2843920, 2963664, 3128312, 3199410, 3519351, 3704580, 3910390, 4265880, 4692468, 4939440, 5119056, 5865585, 6256624, 6398820, 7038702, 7409160, 7820780, 8531760, 9384936, 11731170, 12797640, 14077404, 14818320, 15641560, 17596755, 18769872, 23462340, 25595280, 28154808, 31283120, 35193510, 46924680, 56309616, 70387020, 93849360, 140774040, 281548080]

約数ペア:

[(1, 281548080), (2, 140774040), (3, 93849360), (4, 70387020), (5, 56309616), (6, 46924680), (8, 35193510), (9, 31283120), (10, 28154808), (11, 25595280), (12, 23462340), (15, 18769872), (16, 17596755), (18, 15641560), (19, 14818320), (20, 14077404), (22, 12797640), (24, 11731170), (30, 9384936), (33, 8531760), (36, 7820780), (38, 7409160), (40, 7038702), (44, 6398820), (45, 6256624), (48, 5865585), (55, 5119056), (57, 4939440), (60, 4692468), (66, 4265880), (72, 3910390), (76, 3704580), (80, 3519351), (88, 3199410), (90, 3128312), (95, 2963664), (99, 2843920), (110, 2559528), (114, 2469720), (120, 2346234), (132, 2132940), (144, 1955195), (152, 1852290), (165, 1706352), (171, 1646480), (176, 1599705), (180, 1564156), (190, 1481832), (198, 1421960), (209, 1347120), (220, 1279764), (228, 1234860), (240, 1173117), (264, 1066470), (285, 987888), (304, 926145), (330, 853176), (342, 823240), (360, 782078), (380, 740916), (396, 710980), (418, 673560), (440, 639882), (456, 617430), (495, 568784), (528, 533235), (570, 493944), (627, 449040), (660, 426588), (684, 411620), (720, 391039), (760, 370458), (792, 355490), (836, 336780), (855, 329296), (880, 319941), (912, 308715), (990, 284392), (1045, 269424), (1140, 246972), (1254, 224520), (1320, 213294), (1368, 205810), (1520, 185229), (1584, 177745), (1672, 168390), (1710, 164648), (1871, 150480), (1881, 149680), (1980, 142196), (2090, 134712), (2280, 123486), (2508, 112260), (2640, 106647), (2736, 102905), (3135, 89808), (3344, 84195), (3420, 82324), (3742, 75240), (3762, 74840), (3960, 71098), (4180, 67356), (4560, 61743), (5016, 56130), (5613, 50160), (6270, 44904), (6840, 41162), (7484, 37620), (7524, 37420), (7920, 35549), (8360, 33678), (9355, 30096), (9405, 29936), (10032, 28065), (11226, 25080), (12540, 22452), (13680, 20581), (14968, 18810), (15048, 18710), (16720, 16839)]