31430790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20543}}^1$

素因数の和:20573

約数の個数: 48

約数和(自身を含む): 86531328

約数和(自身を除く): 55100538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 20543, 41086, 61629, 102715, 123258, 184887, 205430, 308145, 349231, 369774, 616290, 698462, 924435, 1047693, 1746155, 1848870, 2095386, 3143079, 3492310, 5238465, 6286158, 10476930, 15715395, 31430790]

約数ペア:

[(1, 31430790), (2, 15715395), (3, 10476930), (5, 6286158), (6, 5238465), (9, 3492310), (10, 3143079), (15, 2095386), (17, 1848870), (18, 1746155), (30, 1047693), (34, 924435), (45, 698462), (51, 616290), (85, 369774), (90, 349231), (102, 308145), (153, 205430), (170, 184887), (255, 123258), (306, 102715), (510, 61629), (765, 41086), (1530, 20543)]