87388040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 214505280

約数和(自身を除く): 127117240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 47, 86, 92, 94, 115, 172, 184, 188, 215, 230, 235, 344, 376, 430, 460, 470, 860, 920, 940, 989, 1081, 1720, 1880, 1978, 2021, 2162, 2209, 3956, 4042, 4324, 4418, 4945, 5405, 7912, 8084, 8648, 8836, 9890, 10105, 10810, 11045, 16168, 17672, 19780, 20210, 21620, 22090, 39560, 40420, 43240, 44180, 46483, 50807, 80840, 88360, 92966, 94987, 101614, 185932, 189974, 203228, 232415, 254035, 371864, 379948, 406456, 464830, 474935, 508070, 759896, 929660, 949870, 1016140, 1859320, 1899740, 2032280, 2184701, 3799480, 4369402, 8738804, 10923505, 17477608, 21847010, 43694020, 87388040]

約数ペア:

[(1, 87388040), (2, 43694020), (4, 21847010), (5, 17477608), (8, 10923505), (10, 8738804), (20, 4369402), (23, 3799480), (40, 2184701), (43, 2032280), (46, 1899740), (47, 1859320), (86, 1016140), (92, 949870), (94, 929660), (115, 759896), (172, 508070), (184, 474935), (188, 464830), (215, 406456), (230, 379948), (235, 371864), (344, 254035), (376, 232415), (430, 203228), (460, 189974), (470, 185932), (860, 101614), (920, 94987), (940, 92966), (989, 88360), (1081, 80840), (1720, 50807), (1880, 46483), (1978, 44180), (2021, 43240), (2162, 40420), (2209, 39560), (3956, 22090), (4042, 21620), (4324, 20210), (4418, 19780), (4945, 17672), (5405, 16168), (7912, 11045), (8084, 10810), (8648, 10105), (8836, 9890)]