1231780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{509}}^1$

素因数の和:540

約数の個数: 36

約数和(自身を含む): 2848860

約数和(自身を除く): 1617080

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 509, 605, 1018, 1210, 2036, 2420, 2545, 5090, 5599, 10180, 11198, 22396, 27995, 55990, 61589, 111980, 123178, 246356, 307945, 615890, 1231780]

約数ペア:

[(1, 1231780), (2, 615890), (4, 307945), (5, 246356), (10, 123178), (11, 111980), (20, 61589), (22, 55990), (44, 27995), (55, 22396), (110, 11198), (121, 10180), (220, 5599), (242, 5090), (484, 2545), (509, 2420), (605, 2036), (1018, 1210)]