213860120

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{40813}}^1$

素因数の和:40955

約数の個数: 32

約数和(自身を含む): 484870320

約数和(自身を除く): 271010200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 40813, 81626, 163252, 204065, 326504, 408130, 816260, 1632520, 5346503, 10693006, 21386012, 26732515, 42772024, 53465030, 106930060, 213860120]

約数ペア:

[(1, 213860120), (2, 106930060), (4, 53465030), (5, 42772024), (8, 26732515), (10, 21386012), (20, 10693006), (40, 5346503), (131, 1632520), (262, 816260), (524, 408130), (655, 326504), (1048, 204065), (1310, 163252), (2620, 81626), (5240, 40813)]