20455811700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{251609}}^1$

素因数の和:251897

約数の個数: 72

約数和(自身を含む): 59404114560

約数和(自身を除く): 38948302860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 271, 300, 542, 813, 1084, 1355, 1626, 2710, 3252, 4065, 5420, 6775, 8130, 13550, 16260, 20325, 27100, 40650, 81300, 251609, 503218, 754827, 1006436, 1258045, 1509654, 2516090, 3019308, 3774135, 5032180, 6290225, 7548270, 12580450, 15096540, 18870675, 25160900, 37741350, 68186039, 75482700, 136372078, 204558117, 272744156, 340930195, 409116234, 681860390, 818232468, 1022790585, 1363720780, 1704650975, 2045581170, 3409301950, 4091162340, 5113952925, 6818603900, 10227905850, 20455811700]

約数ペア:

[(1, 20455811700), (2, 10227905850), (3, 6818603900), (4, 5113952925), (5, 4091162340), (6, 3409301950), (10, 2045581170), (12, 1704650975), (15, 1363720780), (20, 1022790585), (25, 818232468), (30, 681860390), (50, 409116234), (60, 340930195), (75, 272744156), (100, 204558117), (150, 136372078), (271, 75482700), (300, 68186039), (542, 37741350), (813, 25160900), (1084, 18870675), (1355, 15096540), (1626, 12580450), (2710, 7548270), (3252, 6290225), (4065, 5032180), (5420, 3774135), (6775, 3019308), (8130, 2516090), (13550, 1509654), (16260, 1258045), (20325, 1006436), (27100, 754827), (40650, 503218), (81300, 251609)]