129288848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20051}}^1$

素因数の和:20103

約数の個数: 40

約数和(自身を含む): 278482176

約数和(自身を除く): 149193328

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 20051, 40102, 80204, 160408, 260663, 320816, 521326, 621581, 1042652, 1243162, 2085304, 2486324, 4170608, 4972648, 8080553, 9945296, 16161106, 32322212, 64644424, 129288848]

約数ペア:

[(1, 129288848), (2, 64644424), (4, 32322212), (8, 16161106), (13, 9945296), (16, 8080553), (26, 4972648), (31, 4170608), (52, 2486324), (62, 2085304), (104, 1243162), (124, 1042652), (208, 621581), (248, 521326), (403, 320816), (496, 260663), (806, 160408), (1612, 80204), (3224, 40102), (6448, 20051)]