2012018420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79151}}^1$

素因数の和:79232

約数の個数: 48

約数和(自身を含む): 4467972096

約数和(自身を除く): 2455953676

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 6355, 12710, 25420, 79151, 158302, 316604, 395755, 791510, 1583020, 2453681, 3245191, 4907362, 6490382, 9814724, 12268405, 12980764, 16225955, 24536810, 32451910, 49073620, 64903820, 100600921, 201201842, 402403684, 503004605, 1006009210, 2012018420]

約数ペア:

[(1, 2012018420), (2, 1006009210), (4, 503004605), (5, 402403684), (10, 201201842), (20, 100600921), (31, 64903820), (41, 49073620), (62, 32451910), (82, 24536810), (124, 16225955), (155, 12980764), (164, 12268405), (205, 9814724), (310, 6490382), (410, 4907362), (620, 3245191), (820, 2453681), (1271, 1583020), (2542, 791510), (5084, 395755), (6355, 316604), (12710, 158302), (25420, 79151)]