20150866760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{25117}}^1$

素因数の和:25806

約数の個数: 64

約数和(自身を含む): 46876216320

約数和(自身を除く): 26725349560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 647, 1240, 1294, 2588, 3235, 5176, 6470, 12940, 20057, 25117, 25880, 40114, 50234, 80228, 100285, 100468, 125585, 160456, 200570, 200936, 251170, 401140, 502340, 778627, 802280, 1004680, 1557254, 3114508, 3893135, 6229016, 7786270, 15572540, 16250699, 31145080, 32501398, 65002796, 81253495, 130005592, 162506990, 325013980, 503771669, 650027960, 1007543338, 2015086676, 2518858345, 4030173352, 5037716690, 10075433380, 20150866760]

約数ペア:

[(1, 20150866760), (2, 10075433380), (4, 5037716690), (5, 4030173352), (8, 2518858345), (10, 2015086676), (20, 1007543338), (31, 650027960), (40, 503771669), (62, 325013980), (124, 162506990), (155, 130005592), (248, 81253495), (310, 65002796), (620, 32501398), (647, 31145080), (1240, 16250699), (1294, 15572540), (2588, 7786270), (3235, 6229016), (5176, 3893135), (6470, 3114508), (12940, 1557254), (20057, 1004680), (25117, 802280), (25880, 778627), (40114, 502340), (50234, 401140), (80228, 251170), (100285, 200936), (100468, 200570), (125585, 160456)]