16877500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 60

約数和(自身を含む): 38006584

約数和(自身を除く): 21129084

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 157, 172, 215, 250, 314, 430, 500, 625, 628, 785, 860, 1075, 1250, 1570, 2150, 2500, 3140, 3925, 4300, 5375, 6751, 7850, 10750, 13502, 15700, 19625, 21500, 26875, 27004, 33755, 39250, 53750, 67510, 78500, 98125, 107500, 135020, 168775, 196250, 337550, 392500, 675100, 843875, 1687750, 3375500, 4219375, 8438750, 16877500]

約数ペア:

[(1, 16877500), (2, 8438750), (4, 4219375), (5, 3375500), (10, 1687750), (20, 843875), (25, 675100), (43, 392500), (50, 337550), (86, 196250), (100, 168775), (125, 135020), (157, 107500), (172, 98125), (215, 78500), (250, 67510), (314, 53750), (430, 39250), (500, 33755), (625, 27004), (628, 26875), (785, 21500), (860, 19625), (1075, 15700), (1250, 13502), (1570, 10750), (2150, 7850), (2500, 6751), (3140, 5375), (3925, 4300)]