538109780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{66763}}^1$

素因数の和:66816

約数の個数: 48

約数和(自身を含む): 1256231424

約数和(自身を除く): 718121644

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, 8060, 66763, 133526, 267052, 333815, 667630, 867919, 1335260, 1735838, 2069653, 3471676, 4139306, 4339595, 8278612, 8679190, 10348265, 17358380, 20696530, 26905489, 41393060, 53810978, 107621956, 134527445, 269054890, 538109780]

約数ペア:

[(1, 538109780), (2, 269054890), (4, 134527445), (5, 107621956), (10, 53810978), (13, 41393060), (20, 26905489), (26, 20696530), (31, 17358380), (52, 10348265), (62, 8679190), (65, 8278612), (124, 4339595), (130, 4139306), (155, 3471676), (260, 2069653), (310, 1735838), (403, 1335260), (620, 867919), (806, 667630), (1612, 333815), (2015, 267052), (4030, 133526), (8060, 66763)]