28392500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:342

約数の個数: 60

約数和(自身を含む): 63832692

約数和(自身を除く): 35440192

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 277, 410, 500, 554, 625, 820, 1025, 1108, 1250, 1385, 2050, 2500, 2770, 4100, 5125, 5540, 6925, 10250, 11357, 13850, 20500, 22714, 25625, 27700, 34625, 45428, 51250, 56785, 69250, 102500, 113570, 138500, 173125, 227140, 283925, 346250, 567850, 692500, 1135700, 1419625, 2839250, 5678500, 7098125, 14196250, 28392500]

約数ペア:

[(1, 28392500), (2, 14196250), (4, 7098125), (5, 5678500), (10, 2839250), (20, 1419625), (25, 1135700), (41, 692500), (50, 567850), (82, 346250), (100, 283925), (125, 227140), (164, 173125), (205, 138500), (250, 113570), (277, 102500), (410, 69250), (500, 56785), (554, 51250), (625, 45428), (820, 34625), (1025, 27700), (1108, 25625), (1250, 22714), (1385, 20500), (2050, 13850), (2500, 11357), (2770, 10250), (4100, 6925), (5125, 5540)]