18165520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 120

約数和(自身を含む): 48472344

約数和(自身を除く): 30306824

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 37, 38, 40, 68, 74, 76, 80, 85, 95, 136, 148, 152, 170, 185, 190, 272, 296, 304, 323, 340, 361, 370, 380, 592, 629, 646, 680, 703, 722, 740, 760, 1258, 1292, 1360, 1406, 1444, 1480, 1520, 1615, 1805, 2516, 2584, 2812, 2888, 2960, 3145, 3230, 3515, 3610, 5032, 5168, 5624, 5776, 6137, 6290, 6460, 7030, 7220, 10064, 11248, 11951, 12274, 12580, 12920, 13357, 14060, 14440, 23902, 24548, 25160, 25840, 26714, 28120, 28880, 30685, 47804, 49096, 50320, 53428, 56240, 59755, 61370, 66785, 95608, 98192, 106856, 119510, 122740, 133570, 191216, 213712, 227069, 239020, 245480, 267140, 454138, 478040, 490960, 534280, 908276, 956080, 1068560, 1135345, 1816552, 2270690, 3633104, 4541380, 9082760, 18165520]

約数ペア:

[(1, 18165520), (2, 9082760), (4, 4541380), (5, 3633104), (8, 2270690), (10, 1816552), (16, 1135345), (17, 1068560), (19, 956080), (20, 908276), (34, 534280), (37, 490960), (38, 478040), (40, 454138), (68, 267140), (74, 245480), (76, 239020), (80, 227069), (85, 213712), (95, 191216), (136, 133570), (148, 122740), (152, 119510), (170, 106856), (185, 98192), (190, 95608), (272, 66785), (296, 61370), (304, 59755), (323, 56240), (340, 53428), (361, 50320), (370, 49096), (380, 47804), (592, 30685), (629, 28880), (646, 28120), (680, 26714), (703, 25840), (722, 25160), (740, 24548), (760, 23902), (1258, 14440), (1292, 14060), (1360, 13357), (1406, 12920), (1444, 12580), (1480, 12274), (1520, 11951), (1615, 11248), (1805, 10064), (2516, 7220), (2584, 7030), (2812, 6460), (2888, 6290), (2960, 6137), (3145, 5776), (3230, 5624), (3515, 5168), (3610, 5032)]