20210713840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{362459}}^1$

素因数の和:362530

約数の個数: 80

約数和(自身を含む): 50967675360

約数和(自身を除く): 30756961520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 205, 272, 328, 340, 410, 656, 680, 697, 820, 1360, 1394, 1640, 2788, 3280, 3485, 5576, 6970, 11152, 13940, 27880, 55760, 362459, 724918, 1449836, 1812295, 2899672, 3624590, 5799344, 6161803, 7249180, 12323606, 14498360, 14860819, 24647212, 28996720, 29721638, 30809015, 49294424, 59443276, 61618030, 74304095, 98588848, 118886552, 123236060, 148608190, 237773104, 246472120, 252633923, 297216380, 492944240, 505267846, 594432760, 1010535692, 1188865520, 1263169615, 2021071384, 2526339230, 4042142768, 5052678460, 10105356920, 20210713840]

約数ペア:

[(1, 20210713840), (2, 10105356920), (4, 5052678460), (5, 4042142768), (8, 2526339230), (10, 2021071384), (16, 1263169615), (17, 1188865520), (20, 1010535692), (34, 594432760), (40, 505267846), (41, 492944240), (68, 297216380), (80, 252633923), (82, 246472120), (85, 237773104), (136, 148608190), (164, 123236060), (170, 118886552), (205, 98588848), (272, 74304095), (328, 61618030), (340, 59443276), (410, 49294424), (656, 30809015), (680, 29721638), (697, 28996720), (820, 24647212), (1360, 14860819), (1394, 14498360), (1640, 12323606), (2788, 7249180), (3280, 6161803), (3485, 5799344), (5576, 3624590), (6970, 2899672), (11152, 1812295), (13940, 1449836), (27880, 724918), (55760, 362459)]