2100020900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{1453}}^1$

素因数の和:1713

約数の個数: 72

約数和(自身を含む): 4638114600

約数和(自身を除く): 2538093700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 149, 194, 298, 388, 485, 596, 745, 970, 1453, 1490, 1940, 2425, 2906, 2980, 3725, 4850, 5812, 7265, 7450, 9700, 14453, 14530, 14900, 28906, 29060, 36325, 57812, 72265, 72650, 140941, 144530, 145300, 216497, 281882, 289060, 361325, 432994, 563764, 704705, 722650, 865988, 1082485, 1409410, 1445300, 2164970, 2818820, 3523525, 4329940, 5412425, 7047050, 10824850, 14094100, 21000209, 21649700, 42000418, 84000836, 105001045, 210002090, 420004180, 525005225, 1050010450, 2100020900]

約数ペア:

[(1, 2100020900), (2, 1050010450), (4, 525005225), (5, 420004180), (10, 210002090), (20, 105001045), (25, 84000836), (50, 42000418), (97, 21649700), (100, 21000209), (149, 14094100), (194, 10824850), (298, 7047050), (388, 5412425), (485, 4329940), (596, 3523525), (745, 2818820), (970, 2164970), (1453, 1445300), (1490, 1409410), (1940, 1082485), (2425, 865988), (2906, 722650), (2980, 704705), (3725, 563764), (4850, 432994), (5812, 361325), (7265, 289060), (7450, 281882), (9700, 216497), (14453, 145300), (14530, 144530), (14900, 140941), (28906, 72650), (29060, 72265), (36325, 57812)]