128208250

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 252315648

約数和(自身を除く): 124107398

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 71, 125, 142, 155, 233, 250, 310, 355, 466, 710, 775, 1165, 1550, 1775, 2201, 2330, 3550, 3875, 4402, 5825, 7223, 7750, 8875, 11005, 11650, 14446, 16543, 17750, 22010, 29125, 33086, 36115, 55025, 58250, 72230, 82715, 110050, 165430, 180575, 275125, 361150, 413575, 512833, 550250, 827150, 902875, 1025666, 1805750, 2067875, 2564165, 4135750, 5128330, 12820825, 25641650, 64104125, 128208250]

約数ペア:

[(1, 128208250), (2, 64104125), (5, 25641650), (10, 12820825), (25, 5128330), (31, 4135750), (50, 2564165), (62, 2067875), (71, 1805750), (125, 1025666), (142, 902875), (155, 827150), (233, 550250), (250, 512833), (310, 413575), (355, 361150), (466, 275125), (710, 180575), (775, 165430), (1165, 110050), (1550, 82715), (1775, 72230), (2201, 58250), (2330, 55025), (3550, 36115), (3875, 33086), (4402, 29125), (5825, 22010), (7223, 17750), (7750, 16543), (8875, 14446), (11005, 11650)]