815774740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{337097}}^1$

素因数の和:337128

約数の個数: 36

約数和(自身を含む): 1883029428

約数和(自身を除く): 1067254688

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 337097, 674194, 1348388, 1685485, 3370970, 3708067, 6741940, 7416134, 14832268, 18540335, 37080670, 40788737, 74161340, 81577474, 163154948, 203943685, 407887370, 815774740]

約数ペア:

[(1, 815774740), (2, 407887370), (4, 203943685), (5, 163154948), (10, 81577474), (11, 74161340), (20, 40788737), (22, 37080670), (44, 18540335), (55, 14832268), (110, 7416134), (121, 6741940), (220, 3708067), (242, 3370970), (484, 1685485), (605, 1348388), (1210, 674194), (2420, 337097)]