72660880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17137}}^1$

素因数の和:17203

約数の個数: 40

約数和(自身を含む): 172134072

約数和(自身を除く): 99473192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 17137, 34274, 68548, 85685, 137096, 171370, 274192, 342740, 685480, 908261, 1370960, 1816522, 3633044, 4541305, 7266088, 9082610, 14532176, 18165220, 36330440, 72660880]

約数ペア:

[(1, 72660880), (2, 36330440), (4, 18165220), (5, 14532176), (8, 9082610), (10, 7266088), (16, 4541305), (20, 3633044), (40, 1816522), (53, 1370960), (80, 908261), (106, 685480), (212, 342740), (265, 274192), (424, 171370), (530, 137096), (848, 85685), (1060, 68548), (2120, 34274), (4240, 17137)]