25641650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 50139648

約数和(自身を除く): 24497998

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 71, 142, 155, 233, 310, 355, 466, 710, 775, 1165, 1550, 1775, 2201, 2330, 3550, 4402, 5825, 7223, 11005, 11650, 14446, 16543, 22010, 33086, 36115, 55025, 72230, 82715, 110050, 165430, 180575, 361150, 413575, 512833, 827150, 1025666, 2564165, 5128330, 12820825, 25641650]

約数ペア:

[(1, 25641650), (2, 12820825), (5, 5128330), (10, 2564165), (25, 1025666), (31, 827150), (50, 512833), (62, 413575), (71, 361150), (142, 180575), (155, 165430), (233, 110050), (310, 82715), (355, 72230), (466, 55025), (710, 36115), (775, 33086), (1165, 22010), (1550, 16543), (1775, 14446), (2201, 11650), (2330, 11005), (3550, 7223), (4402, 5825)]