81149940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14543}}^1$

素因数の和:14589

約数の個数: 72

約数和(自身を含む): 254112768

約数和(自身を除く): 172962828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 14543, 29086, 43629, 58172, 72715, 87258, 130887, 145430, 174516, 218145, 261774, 290860, 436290, 450833, 523548, 654435, 872580, 901666, 1308870, 1352499, 1803332, 2254165, 2617740, 2704998, 4057497, 4508330, 5409996, 6762495, 8114994, 9016660, 13524990, 16229988, 20287485, 27049980, 40574970, 81149940]

約数ペア:

[(1, 81149940), (2, 40574970), (3, 27049980), (4, 20287485), (5, 16229988), (6, 13524990), (9, 9016660), (10, 8114994), (12, 6762495), (15, 5409996), (18, 4508330), (20, 4057497), (30, 2704998), (31, 2617740), (36, 2254165), (45, 1803332), (60, 1352499), (62, 1308870), (90, 901666), (93, 872580), (124, 654435), (155, 523548), (180, 450833), (186, 436290), (279, 290860), (310, 261774), (372, 218145), (465, 174516), (558, 145430), (620, 130887), (930, 87258), (1116, 72715), (1395, 58172), (1860, 43629), (2790, 29086), (5580, 14543)]