80900880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{647}}^1$

素因数の和:1184

約数の個数: 80

約数和(自身を含む): 251662464

約数和(自身を除く): 170761584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 521, 647, 1042, 1294, 1563, 1941, 2084, 2588, 2605, 3126, 3235, 3882, 4168, 5176, 5210, 6252, 6470, 7764, 7815, 8336, 9705, 10352, 10420, 12504, 12940, 15528, 15630, 19410, 20840, 25008, 25880, 31056, 31260, 38820, 41680, 51760, 62520, 77640, 125040, 155280, 337087, 674174, 1011261, 1348348, 1685435, 2022522, 2696696, 3370870, 4045044, 5056305, 5393392, 6741740, 8090088, 10112610, 13483480, 16180176, 20225220, 26966960, 40450440, 80900880]

約数ペア:

[(1, 80900880), (2, 40450440), (3, 26966960), (4, 20225220), (5, 16180176), (6, 13483480), (8, 10112610), (10, 8090088), (12, 6741740), (15, 5393392), (16, 5056305), (20, 4045044), (24, 3370870), (30, 2696696), (40, 2022522), (48, 1685435), (60, 1348348), (80, 1011261), (120, 674174), (240, 337087), (521, 155280), (647, 125040), (1042, 77640), (1294, 62520), (1563, 51760), (1941, 41680), (2084, 38820), (2588, 31260), (2605, 31056), (3126, 25880), (3235, 25008), (3882, 20840), (4168, 19410), (5176, 15630), (5210, 15528), (6252, 12940), (6470, 12504), (7764, 10420), (7815, 10352), (8336, 9705)]