19289800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2243}}^1$

素因数の和:2302

約数の個数: 48

約数和(自身を含む): 45912240

約数和(自身を除く): 26622440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2243, 4300, 4486, 8600, 8972, 11215, 17944, 22430, 44860, 56075, 89720, 96449, 112150, 192898, 224300, 385796, 448600, 482245, 771592, 964490, 1928980, 2411225, 3857960, 4822450, 9644900, 19289800]

約数ペア:

[(1, 19289800), (2, 9644900), (4, 4822450), (5, 3857960), (8, 2411225), (10, 1928980), (20, 964490), (25, 771592), (40, 482245), (43, 448600), (50, 385796), (86, 224300), (100, 192898), (172, 112150), (200, 96449), (215, 89720), (344, 56075), (430, 44860), (860, 22430), (1075, 17944), (1720, 11215), (2150, 8972), (2243, 8600), (4300, 4486)]