64391320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 174182400

約数和(自身を除く): 109791080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 71, 79, 82, 140, 142, 158, 164, 205, 280, 284, 287, 316, 328, 355, 395, 410, 497, 553, 568, 574, 632, 710, 790, 820, 994, 1106, 1148, 1420, 1435, 1580, 1640, 1988, 2212, 2296, 2485, 2765, 2840, 2870, 2911, 3160, 3239, 3976, 4424, 4970, 5530, 5609, 5740, 5822, 6478, 9940, 11060, 11218, 11480, 11644, 12956, 14555, 16195, 19880, 20377, 22120, 22436, 22673, 23288, 25912, 28045, 29110, 32390, 39263, 40754, 44872, 45346, 56090, 58220, 64780, 78526, 81508, 90692, 101885, 112180, 113365, 116440, 129560, 157052, 163016, 181384, 196315, 203770, 224360, 226730, 229969, 314104, 392630, 407540, 453460, 459938, 785260, 815080, 906920, 919876, 1149845, 1570520, 1609783, 1839752, 2299690, 3219566, 4599380, 6439132, 8048915, 9198760, 12878264, 16097830, 32195660, 64391320]

約数ペア:

[(1, 64391320), (2, 32195660), (4, 16097830), (5, 12878264), (7, 9198760), (8, 8048915), (10, 6439132), (14, 4599380), (20, 3219566), (28, 2299690), (35, 1839752), (40, 1609783), (41, 1570520), (56, 1149845), (70, 919876), (71, 906920), (79, 815080), (82, 785260), (140, 459938), (142, 453460), (158, 407540), (164, 392630), (205, 314104), (280, 229969), (284, 226730), (287, 224360), (316, 203770), (328, 196315), (355, 181384), (395, 163016), (410, 157052), (497, 129560), (553, 116440), (568, 113365), (574, 112180), (632, 101885), (710, 90692), (790, 81508), (820, 78526), (994, 64780), (1106, 58220), (1148, 56090), (1420, 45346), (1435, 44872), (1580, 40754), (1640, 39263), (1988, 32390), (2212, 29110), (2296, 28045), (2485, 25912), (2765, 23288), (2840, 22673), (2870, 22436), (2911, 22120), (3160, 20377), (3239, 19880), (3976, 16195), (4424, 14555), (4970, 12956), (5530, 11644), (5609, 11480), (5740, 11218), (5822, 11060), (6478, 9940)]