21467500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:332

約数の個数: 60

約数和(自身を含む): 48634432

約数和(自身を除く): 27166932

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 277, 310, 500, 554, 620, 625, 775, 1108, 1250, 1385, 1550, 2500, 2770, 3100, 3875, 5540, 6925, 7750, 8587, 13850, 15500, 17174, 19375, 27700, 34348, 34625, 38750, 42935, 69250, 77500, 85870, 138500, 171740, 173125, 214675, 346250, 429350, 692500, 858700, 1073375, 2146750, 4293500, 5366875, 10733750, 21467500]

約数ペア:

[(1, 21467500), (2, 10733750), (4, 5366875), (5, 4293500), (10, 2146750), (20, 1073375), (25, 858700), (31, 692500), (50, 429350), (62, 346250), (100, 214675), (124, 173125), (125, 171740), (155, 138500), (250, 85870), (277, 77500), (310, 69250), (500, 42935), (554, 38750), (620, 34625), (625, 34348), (775, 27700), (1108, 19375), (1250, 17174), (1385, 15500), (1550, 13850), (2500, 8587), (2770, 7750), (3100, 6925), (3875, 5540)]