25771540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 30644204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 211, 310, 394, 422, 620, 788, 844, 985, 1055, 1970, 2110, 3940, 4220, 6107, 6541, 12214, 13082, 24428, 26164, 30535, 32705, 41567, 61070, 65410, 83134, 122140, 130820, 166268, 207835, 415670, 831340, 1288577, 2577154, 5154308, 6442885, 12885770, 25771540]

約数ペア:

[(1, 25771540), (2, 12885770), (4, 6442885), (5, 5154308), (10, 2577154), (20, 1288577), (31, 831340), (62, 415670), (124, 207835), (155, 166268), (197, 130820), (211, 122140), (310, 83134), (394, 65410), (422, 61070), (620, 41567), (788, 32705), (844, 30535), (985, 26164), (1055, 24428), (1970, 13082), (2110, 12214), (3940, 6541), (4220, 6107)]