9980490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 26119296

約数和(自身を除く): 16138806

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 157, 163, 195, 314, 326, 390, 471, 489, 785, 815, 942, 978, 1570, 1630, 2041, 2119, 2355, 2445, 4082, 4238, 4710, 4890, 6123, 6357, 10205, 10595, 12246, 12714, 20410, 21190, 25591, 30615, 31785, 51182, 61230, 63570, 76773, 127955, 153546, 255910, 332683, 383865, 665366, 767730, 998049, 1663415, 1996098, 3326830, 4990245, 9980490]

約数ペア:

[(1, 9980490), (2, 4990245), (3, 3326830), (5, 1996098), (6, 1663415), (10, 998049), (13, 767730), (15, 665366), (26, 383865), (30, 332683), (39, 255910), (65, 153546), (78, 127955), (130, 76773), (157, 63570), (163, 61230), (195, 51182), (314, 31785), (326, 30615), (390, 25591), (471, 21190), (489, 20410), (785, 12714), (815, 12246), (942, 10595), (978, 10205), (1570, 6357), (1630, 6123), (2041, 4890), (2119, 4710), (2355, 4238), (2445, 4082)]