25265000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 61480320

約数和(自身を除く): 36215320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 163, 200, 248, 250, 310, 326, 500, 620, 625, 652, 775, 815, 1000, 1240, 1250, 1304, 1550, 1630, 2500, 3100, 3260, 3875, 4075, 5000, 5053, 6200, 6520, 7750, 8150, 10106, 15500, 16300, 19375, 20212, 20375, 25265, 31000, 32600, 38750, 40424, 40750, 50530, 77500, 81500, 101060, 101875, 126325, 155000, 163000, 202120, 203750, 252650, 407500, 505300, 631625, 815000, 1010600, 1263250, 2526500, 3158125, 5053000, 6316250, 12632500, 25265000]

約数ペア:

[(1, 25265000), (2, 12632500), (4, 6316250), (5, 5053000), (8, 3158125), (10, 2526500), (20, 1263250), (25, 1010600), (31, 815000), (40, 631625), (50, 505300), (62, 407500), (100, 252650), (124, 203750), (125, 202120), (155, 163000), (163, 155000), (200, 126325), (248, 101875), (250, 101060), (310, 81500), (326, 77500), (500, 50530), (620, 40750), (625, 40424), (652, 38750), (775, 32600), (815, 31000), (1000, 25265), (1240, 20375), (1250, 20212), (1304, 19375), (1550, 16300), (1630, 15500), (2500, 10106), (3100, 8150), (3260, 7750), (3875, 6520), (4075, 6200), (5000, 5053)]