291244460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 667144800

約数和(自身を除く): 375900340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 199, 260, 338, 398, 433, 676, 796, 845, 866, 995, 1690, 1732, 1990, 2165, 2587, 3380, 3980, 4330, 5174, 5629, 8660, 10348, 11258, 12935, 22516, 25870, 28145, 33631, 51740, 56290, 67262, 73177, 86167, 112580, 134524, 146354, 168155, 172334, 292708, 336310, 344668, 365885, 430835, 672620, 731770, 861670, 1120171, 1463540, 1723340, 2240342, 4480684, 5600855, 11201710, 14562223, 22403420, 29124446, 58248892, 72811115, 145622230, 291244460]

約数ペア:

[(1, 291244460), (2, 145622230), (4, 72811115), (5, 58248892), (10, 29124446), (13, 22403420), (20, 14562223), (26, 11201710), (52, 5600855), (65, 4480684), (130, 2240342), (169, 1723340), (199, 1463540), (260, 1120171), (338, 861670), (398, 731770), (433, 672620), (676, 430835), (796, 365885), (845, 344668), (866, 336310), (995, 292708), (1690, 172334), (1732, 168155), (1990, 146354), (2165, 134524), (2587, 112580), (3380, 86167), (3980, 73177), (4330, 67262), (5174, 56290), (5629, 51740), (8660, 33631), (10348, 28145), (11258, 25870), (12935, 22516)]