28456250

素因数分解:

$2^1\times 5^5\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 55543320

約数和(自身を除く): 27087070

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 157, 250, 290, 314, 625, 725, 785, 1250, 1450, 1570, 3125, 3625, 3925, 4553, 6250, 7250, 7850, 9106, 18125, 19625, 22765, 36250, 39250, 45530, 90625, 98125, 113825, 181250, 196250, 227650, 490625, 569125, 981250, 1138250, 2845625, 5691250, 14228125, 28456250]

約数ペア:

[(1, 28456250), (2, 14228125), (5, 5691250), (10, 2845625), (25, 1138250), (29, 981250), (50, 569125), (58, 490625), (125, 227650), (145, 196250), (157, 181250), (250, 113825), (290, 98125), (314, 90625), (625, 45530), (725, 39250), (785, 36250), (1250, 22765), (1450, 19625), (1570, 18125), (3125, 9106), (3625, 7850), (3925, 7250), (4553, 6250)]