18560820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4357}}^1$

素因数の和:4440

約数の個数: 48

約数和(自身を含む): 52714368

約数和(自身を除く): 34153548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4357, 8714, 13071, 17428, 21785, 26142, 43570, 52284, 65355, 87140, 130710, 261420, 309347, 618694, 928041, 1237388, 1546735, 1856082, 3093470, 3712164, 4640205, 6186940, 9280410, 18560820]

約数ペア:

[(1, 18560820), (2, 9280410), (3, 6186940), (4, 4640205), (5, 3712164), (6, 3093470), (10, 1856082), (12, 1546735), (15, 1237388), (20, 928041), (30, 618694), (60, 309347), (71, 261420), (142, 130710), (213, 87140), (284, 65355), (355, 52284), (426, 43570), (710, 26142), (852, 21785), (1065, 17428), (1420, 13071), (2130, 8714), (4260, 4357)]