200890990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{5011}}^1$

素因数の和:5248

約数の個数: 32

約数和(自身を含む): 382515840

約数和(自身を除く): 181624850

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 1055, 2110, 4009, 5011, 8018, 10022, 20045, 25055, 40090, 50110, 95209, 190418, 476045, 952090, 1057321, 2114642, 5286605, 10573210, 20089099, 40178198, 100445495, 200890990]

約数ペア:

[(1, 200890990), (2, 100445495), (5, 40178198), (10, 20089099), (19, 10573210), (38, 5286605), (95, 2114642), (190, 1057321), (211, 952090), (422, 476045), (1055, 190418), (2110, 95209), (4009, 50110), (5011, 40090), (8018, 25055), (10022, 20045)]