19458045140

素因数分解:

$2^2\times 5^1\times {\mathrm{13171}}^1\times {\mathrm{73867}}^1$

素因数の和:87047

約数の個数: 24

約数和(自身を含む): 40865550432

約数和(自身を除く): 21407505292

約数列:

[1, 2, 4, 5, 10, 20, 13171, 26342, 52684, 65855, 73867, 131710, 147734, 263420, 295468, 369335, 738670, 1477340, 972902257, 1945804514, 3891609028, 4864511285, 9729022570, 19458045140]

約数ペア:

[(1, 19458045140), (2, 9729022570), (4, 4864511285), (5, 3891609028), (10, 1945804514), (20, 972902257), (13171, 1477340), (26342, 738670), (52684, 369335), (65855, 295468), (73867, 263420), (131710, 147734)]