80128180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{379}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 190179360

約数和(自身を除く): 110051180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 379, 620, 682, 758, 961, 1364, 1516, 1705, 1895, 1922, 3410, 3790, 3844, 4169, 4805, 6820, 7580, 8338, 9610, 10571, 11749, 16676, 19220, 20845, 21142, 23498, 41690, 42284, 46996, 52855, 58745, 83380, 105710, 117490, 129239, 211420, 234980, 258478, 364219, 516956, 646195, 728438, 1292390, 1456876, 1821095, 2584780, 3642190, 4006409, 7284380, 8012818, 16025636, 20032045, 40064090, 80128180]

約数ペア:

[(1, 80128180), (2, 40064090), (4, 20032045), (5, 16025636), (10, 8012818), (11, 7284380), (20, 4006409), (22, 3642190), (31, 2584780), (44, 1821095), (55, 1456876), (62, 1292390), (110, 728438), (124, 646195), (155, 516956), (220, 364219), (310, 258478), (341, 234980), (379, 211420), (620, 129239), (682, 117490), (758, 105710), (961, 83380), (1364, 58745), (1516, 52855), (1705, 46996), (1895, 42284), (1922, 41690), (3410, 23498), (3790, 21142), (3844, 20845), (4169, 19220), (4805, 16676), (6820, 11749), (7580, 10571), (8338, 9610)]