108289820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 235872000

約数和(自身を除く): 127582180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 389, 449, 620, 778, 898, 1556, 1796, 1945, 2245, 3890, 4490, 7780, 8980, 12059, 13919, 24118, 27838, 48236, 55676, 60295, 69595, 120590, 139190, 174661, 241180, 278380, 349322, 698644, 873305, 1746610, 3493220, 5414491, 10828982, 21657964, 27072455, 54144910, 108289820]

約数ペア:

[(1, 108289820), (2, 54144910), (4, 27072455), (5, 21657964), (10, 10828982), (20, 5414491), (31, 3493220), (62, 1746610), (124, 873305), (155, 698644), (310, 349322), (389, 278380), (449, 241180), (620, 174661), (778, 139190), (898, 120590), (1556, 69595), (1796, 60295), (1945, 55676), (2245, 48236), (3890, 27838), (4490, 24118), (7780, 13919), (8980, 12059)]