20325250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 43804800

約数和(自身を除く): 23479550

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 125, 190, 209, 250, 275, 389, 418, 475, 550, 778, 950, 1045, 1375, 1945, 2090, 2375, 2750, 3890, 4279, 4750, 5225, 7391, 8558, 9725, 10450, 14782, 19450, 21395, 26125, 36955, 42790, 48625, 52250, 73910, 81301, 97250, 106975, 162602, 184775, 213950, 369550, 406505, 534875, 813010, 923875, 1069750, 1847750, 2032525, 4065050, 10162625, 20325250]

約数ペア:

[(1, 20325250), (2, 10162625), (5, 4065050), (10, 2032525), (11, 1847750), (19, 1069750), (22, 923875), (25, 813010), (38, 534875), (50, 406505), (55, 369550), (95, 213950), (110, 184775), (125, 162602), (190, 106975), (209, 97250), (250, 81301), (275, 73910), (389, 52250), (418, 48625), (475, 42790), (550, 36955), (778, 26125), (950, 21395), (1045, 19450), (1375, 14782), (1945, 10450), (2090, 9725), (2375, 8558), (2750, 7391), (3890, 5225), (4279, 4750)]