21295080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:563

約数の個数: 96

約数和(自身を含む): 69849000

約数和(自身を除く): 48553920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 149, 180, 298, 360, 397, 447, 596, 745, 794, 894, 1191, 1192, 1341, 1490, 1588, 1788, 1985, 2235, 2382, 2682, 2980, 3176, 3573, 3576, 3970, 4470, 4764, 5364, 5955, 5960, 6705, 7146, 7940, 8940, 9528, 10728, 11910, 13410, 14292, 15880, 17865, 17880, 23820, 26820, 28584, 35730, 47640, 53640, 59153, 71460, 118306, 142920, 177459, 236612, 295765, 354918, 473224, 532377, 591530, 709836, 887295, 1064754, 1183060, 1419672, 1774590, 2129508, 2366120, 2661885, 3549180, 4259016, 5323770, 7098360, 10647540, 21295080]

約数ペア:

[(1, 21295080), (2, 10647540), (3, 7098360), (4, 5323770), (5, 4259016), (6, 3549180), (8, 2661885), (9, 2366120), (10, 2129508), (12, 1774590), (15, 1419672), (18, 1183060), (20, 1064754), (24, 887295), (30, 709836), (36, 591530), (40, 532377), (45, 473224), (60, 354918), (72, 295765), (90, 236612), (120, 177459), (149, 142920), (180, 118306), (298, 71460), (360, 59153), (397, 53640), (447, 47640), (596, 35730), (745, 28584), (794, 26820), (894, 23820), (1191, 17880), (1192, 17865), (1341, 15880), (1490, 14292), (1588, 13410), (1788, 11910), (1985, 10728), (2235, 9528), (2382, 8940), (2682, 7940), (2980, 7146), (3176, 6705), (3573, 5960), (3576, 5955), (3970, 5364), (4470, 4764)]