1788149740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{19483}}^1$

素因数の和:19858

約数の個数: 48

約数和(自身を含む): 4055633568

約数和(自身を除く): 2267483828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 353, 706, 1412, 1765, 3530, 4589, 7060, 9178, 18356, 19483, 22945, 38966, 45890, 77932, 91780, 97415, 194830, 253279, 389660, 506558, 1013116, 1266395, 2532790, 5065580, 6877499, 13754998, 27509996, 34387495, 68774990, 89407487, 137549980, 178814974, 357629948, 447037435, 894074870, 1788149740]

約数ペア:

[(1, 1788149740), (2, 894074870), (4, 447037435), (5, 357629948), (10, 178814974), (13, 137549980), (20, 89407487), (26, 68774990), (52, 34387495), (65, 27509996), (130, 13754998), (260, 6877499), (353, 5065580), (706, 2532790), (1412, 1266395), (1765, 1013116), (3530, 506558), (4589, 389660), (7060, 253279), (9178, 194830), (18356, 97415), (19483, 91780), (22945, 77932), (38966, 45890)]