8245240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{571}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 19613880

約数和(自身を除く): 11368640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 571, 722, 760, 1142, 1444, 1805, 2284, 2855, 2888, 3610, 4568, 5710, 7220, 10849, 11420, 14440, 21698, 22840, 43396, 54245, 86792, 108490, 206131, 216980, 412262, 433960, 824524, 1030655, 1649048, 2061310, 4122620, 8245240]

約数ペア:

[(1, 8245240), (2, 4122620), (4, 2061310), (5, 1649048), (8, 1030655), (10, 824524), (19, 433960), (20, 412262), (38, 216980), (40, 206131), (76, 108490), (95, 86792), (152, 54245), (190, 43396), (361, 22840), (380, 21698), (571, 14440), (722, 11420), (760, 10849), (1142, 7220), (1444, 5710), (1805, 4568), (2284, 3610), (2855, 2888)]