220308920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2129}}^1$

素因数の和:2352

約数の個数: 64

約数和(自身を含む): 536760000

約数和(自身を除く): 316451080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 995, 1592, 1990, 2129, 2587, 3980, 4258, 5174, 7960, 8516, 10348, 10645, 12935, 17032, 20696, 21290, 25870, 27677, 42580, 51740, 55354, 85160, 103480, 110708, 138385, 221416, 276770, 423671, 553540, 847342, 1107080, 1694684, 2118355, 3389368, 4236710, 5507723, 8473420, 11015446, 16946840, 22030892, 27538615, 44061784, 55077230, 110154460, 220308920]

約数ペア:

[(1, 220308920), (2, 110154460), (4, 55077230), (5, 44061784), (8, 27538615), (10, 22030892), (13, 16946840), (20, 11015446), (26, 8473420), (40, 5507723), (52, 4236710), (65, 3389368), (104, 2118355), (130, 1694684), (199, 1107080), (260, 847342), (398, 553540), (520, 423671), (796, 276770), (995, 221416), (1592, 138385), (1990, 110708), (2129, 103480), (2587, 85160), (3980, 55354), (4258, 51740), (5174, 42580), (7960, 27677), (8516, 25870), (10348, 21290), (10645, 20696), (12935, 17032)]