19702750

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1487}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 37604736

約数和(自身を除く): 17901986

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 265, 530, 1325, 1487, 2650, 2974, 6625, 7435, 13250, 14870, 37175, 74350, 78811, 157622, 185875, 371750, 394055, 788110, 1970275, 3940550, 9851375, 19702750]

約数ペア:

[(1, 19702750), (2, 9851375), (5, 3940550), (10, 1970275), (25, 788110), (50, 394055), (53, 371750), (106, 185875), (125, 157622), (250, 78811), (265, 74350), (530, 37175), (1325, 14870), (1487, 13250), (2650, 7435), (2974, 6625)]