7398820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 18446400

約数和(自身を除く): 11047580

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 199, 220, 260, 286, 338, 398, 572, 676, 715, 796, 845, 995, 1430, 1690, 1859, 1990, 2189, 2587, 2860, 3380, 3718, 3980, 4378, 5174, 7436, 8756, 9295, 10348, 10945, 12935, 18590, 21890, 25870, 28457, 33631, 37180, 43780, 51740, 56914, 67262, 113828, 134524, 142285, 168155, 284570, 336310, 369941, 569140, 672620, 739882, 1479764, 1849705, 3699410, 7398820]

約数ペア:

[(1, 7398820), (2, 3699410), (4, 1849705), (5, 1479764), (10, 739882), (11, 672620), (13, 569140), (20, 369941), (22, 336310), (26, 284570), (44, 168155), (52, 142285), (55, 134524), (65, 113828), (110, 67262), (130, 56914), (143, 51740), (169, 43780), (199, 37180), (220, 33631), (260, 28457), (286, 25870), (338, 21890), (398, 18590), (572, 12935), (676, 10945), (715, 10348), (796, 9295), (845, 8756), (995, 7436), (1430, 5174), (1690, 4378), (1859, 3980), (1990, 3718), (2189, 3380), (2587, 2860)]