89840560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15817}}^1$

素因数の和:15901

約数の個数: 40

約数和(自身を含む): 211834656

約数和(自身を除く): 121994096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15817, 31634, 63268, 79085, 126536, 158170, 253072, 316340, 632680, 1123007, 1265360, 2246014, 4492028, 5615035, 8984056, 11230070, 17968112, 22460140, 44920280, 89840560]

約数ペア:

[(1, 89840560), (2, 44920280), (4, 22460140), (5, 17968112), (8, 11230070), (10, 8984056), (16, 5615035), (20, 4492028), (40, 2246014), (71, 1265360), (80, 1123007), (142, 632680), (284, 316340), (355, 253072), (568, 158170), (710, 126536), (1136, 79085), (1420, 63268), (2840, 31634), (5680, 15817)]