64181780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7963}}^1$

素因数の和:8016

約数の個数: 48

約数和(自身を含む): 149850624

約数和(自身を除く): 85668844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 7963, 8060, 15926, 31852, 39815, 79630, 103519, 159260, 207038, 246853, 414076, 493706, 517595, 987412, 1035190, 1234265, 2070380, 2468530, 3209089, 4937060, 6418178, 12836356, 16045445, 32090890, 64181780]

約数ペア:

[(1, 64181780), (2, 32090890), (4, 16045445), (5, 12836356), (10, 6418178), (13, 4937060), (20, 3209089), (26, 2468530), (31, 2070380), (52, 1234265), (62, 1035190), (65, 987412), (124, 517595), (130, 493706), (155, 414076), (260, 246853), (310, 207038), (403, 159260), (620, 103519), (806, 79630), (1612, 39815), (2015, 31852), (4030, 15926), (7963, 8060)]