90789080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:600

約数の個数: 64

約数和(自身を含む): 212474880

約数和(自身を除く): 121685800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 211, 248, 310, 347, 422, 620, 694, 844, 1055, 1240, 1388, 1688, 1735, 2110, 2776, 3470, 4220, 6541, 6940, 8440, 10757, 13082, 13880, 21514, 26164, 32705, 43028, 52328, 53785, 65410, 73217, 86056, 107570, 130820, 146434, 215140, 261640, 292868, 366085, 430280, 585736, 732170, 1464340, 2269727, 2928680, 4539454, 9078908, 11348635, 18157816, 22697270, 45394540, 90789080]

約数ペア:

[(1, 90789080), (2, 45394540), (4, 22697270), (5, 18157816), (8, 11348635), (10, 9078908), (20, 4539454), (31, 2928680), (40, 2269727), (62, 1464340), (124, 732170), (155, 585736), (211, 430280), (248, 366085), (310, 292868), (347, 261640), (422, 215140), (620, 146434), (694, 130820), (844, 107570), (1055, 86056), (1240, 73217), (1388, 65410), (1688, 53785), (1735, 52328), (2110, 43028), (2776, 32705), (3470, 26164), (4220, 21514), (6541, 13880), (6940, 13082), (8440, 10757)]