78339820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{821}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 177867648

約数和(自身を除く): 99527828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 367, 734, 821, 1468, 1642, 1835, 3284, 3670, 4105, 4771, 7340, 8210, 9542, 10673, 16420, 19084, 21346, 23855, 42692, 47710, 53365, 95420, 106730, 213460, 301307, 602614, 1205228, 1506535, 3013070, 3916991, 6026140, 7833982, 15667964, 19584955, 39169910, 78339820]

約数ペア:

[(1, 78339820), (2, 39169910), (4, 19584955), (5, 15667964), (10, 7833982), (13, 6026140), (20, 3916991), (26, 3013070), (52, 1506535), (65, 1205228), (130, 602614), (260, 301307), (367, 213460), (734, 106730), (821, 95420), (1468, 53365), (1642, 47710), (1835, 42692), (3284, 23855), (3670, 21346), (4105, 19084), (4771, 16420), (7340, 10673), (8210, 9542)]