4145769980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{991811}}^1$

素因数の和:991850

約数の個数: 48

約数和(自身を含む): 9997464960

約数和(自身を除く): 5851694980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 991811, 1983622, 3967244, 4959055, 9918110, 10909921, 18844409, 19836220, 21819842, 37688818, 43639684, 54549605, 75377636, 94222045, 109099210, 188444090, 207288499, 218198420, 376888180, 414576998, 829153996, 1036442495, 2072884990, 4145769980]

約数ペア:

[(1, 4145769980), (2, 2072884990), (4, 1036442495), (5, 829153996), (10, 414576998), (11, 376888180), (19, 218198420), (20, 207288499), (22, 188444090), (38, 109099210), (44, 94222045), (55, 75377636), (76, 54549605), (95, 43639684), (110, 37688818), (190, 21819842), (209, 19836220), (220, 18844409), (380, 10909921), (418, 9918110), (836, 4959055), (1045, 3967244), (2090, 1983622), (4180, 991811)]