18717900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1511

約数の個数: 72

約数和(自身を含む): 55454784

約数和(自身を除く): 36736884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 1451, 2150, 2580, 2902, 3225, 4300, 4353, 5804, 6450, 7255, 8706, 12900, 14510, 17412, 21765, 29020, 36275, 43530, 62393, 72550, 87060, 108825, 124786, 145100, 187179, 217650, 249572, 311965, 374358, 435300, 623930, 748716, 935895, 1247860, 1559825, 1871790, 3119650, 3743580, 4679475, 6239300, 9358950, 18717900]

約数ペア:

[(1, 18717900), (2, 9358950), (3, 6239300), (4, 4679475), (5, 3743580), (6, 3119650), (10, 1871790), (12, 1559825), (15, 1247860), (20, 935895), (25, 748716), (30, 623930), (43, 435300), (50, 374358), (60, 311965), (75, 249572), (86, 217650), (100, 187179), (129, 145100), (150, 124786), (172, 108825), (215, 87060), (258, 72550), (300, 62393), (430, 43530), (516, 36275), (645, 29020), (860, 21765), (1075, 17412), (1290, 14510), (1451, 12900), (2150, 8706), (2580, 7255), (2902, 6450), (3225, 5804), (4300, 4353)]