81648500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{2677}}^1$

素因数の和:2757

約数の個数: 48

約数和(自身を含む): 181311312

約数和(自身を除く): 99662812

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 244, 250, 305, 500, 610, 1220, 1525, 2677, 3050, 5354, 6100, 7625, 10708, 13385, 15250, 26770, 30500, 53540, 66925, 133850, 163297, 267700, 326594, 334625, 653188, 669250, 816485, 1338500, 1632970, 3265940, 4082425, 8164850, 16329700, 20412125, 40824250, 81648500]

約数ペア:

[(1, 81648500), (2, 40824250), (4, 20412125), (5, 16329700), (10, 8164850), (20, 4082425), (25, 3265940), (50, 1632970), (61, 1338500), (100, 816485), (122, 669250), (125, 653188), (244, 334625), (250, 326594), (305, 267700), (500, 163297), (610, 133850), (1220, 66925), (1525, 53540), (2677, 30500), (3050, 26770), (5354, 15250), (6100, 13385), (7625, 10708)]