138998120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2978

約数の個数: 64

約数和(自身を含む): 335923200

約数和(自身を除く): 196925080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 2414, 2840, 2879, 4828, 5758, 6035, 9656, 11516, 12070, 14395, 23032, 24140, 28790, 48280, 48943, 57580, 97886, 115160, 195772, 204409, 244715, 391544, 408818, 489430, 817636, 978860, 1022045, 1635272, 1957720, 2044090, 3474953, 4088180, 6949906, 8176360, 13899812, 17374765, 27799624, 34749530, 69499060, 138998120]

約数ペア:

[(1, 138998120), (2, 69499060), (4, 34749530), (5, 27799624), (8, 17374765), (10, 13899812), (17, 8176360), (20, 6949906), (34, 4088180), (40, 3474953), (68, 2044090), (71, 1957720), (85, 1635272), (136, 1022045), (142, 978860), (170, 817636), (284, 489430), (340, 408818), (355, 391544), (568, 244715), (680, 204409), (710, 195772), (1207, 115160), (1420, 97886), (2414, 57580), (2840, 48943), (2879, 48280), (4828, 28790), (5758, 24140), (6035, 23032), (9656, 14395), (11516, 12070)]