491283620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{1301}}^1$

素因数の和:1628

約数の個数: 48

約数和(自身を含む): 1049932800

約数和(自身を除く): 558649180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 239, 316, 395, 478, 790, 956, 1195, 1301, 1580, 2390, 2602, 4780, 5204, 6505, 13010, 18881, 26020, 37762, 75524, 94405, 102779, 188810, 205558, 310939, 377620, 411116, 513895, 621878, 1027790, 1243756, 1554695, 2055580, 3109390, 6218780, 24564181, 49128362, 98256724, 122820905, 245641810, 491283620]

約数ペア:

[(1, 491283620), (2, 245641810), (4, 122820905), (5, 98256724), (10, 49128362), (20, 24564181), (79, 6218780), (158, 3109390), (239, 2055580), (316, 1554695), (395, 1243756), (478, 1027790), (790, 621878), (956, 513895), (1195, 411116), (1301, 377620), (1580, 310939), (2390, 205558), (2602, 188810), (4780, 102779), (5204, 94405), (6505, 75524), (13010, 37762), (18881, 26020)]