209216830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{2129}}^1$

素因数の和:2484

約数の個数: 32

約数和(自身を含む): 390147840

約数和(自身を除く): 180931010

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 317, 634, 1585, 2129, 3170, 4258, 9827, 10645, 19654, 21290, 49135, 65999, 98270, 131998, 329995, 659990, 674893, 1349786, 3374465, 6748930, 20921683, 41843366, 104608415, 209216830]

約数ペア:

[(1, 209216830), (2, 104608415), (5, 41843366), (10, 20921683), (31, 6748930), (62, 3374465), (155, 1349786), (310, 674893), (317, 659990), (634, 329995), (1585, 131998), (2129, 98270), (3170, 65999), (4258, 49135), (9827, 21290), (10645, 19654)]