199520820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1559}}^1$

素因数の和:1659

約数の個数: 120

約数和(自身を含む): 634233600

約数和(自身を除く): 434712780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 180, 237, 270, 316, 324, 395, 405, 474, 540, 711, 790, 810, 948, 1185, 1422, 1559, 1580, 1620, 2133, 2370, 2844, 3118, 3555, 4266, 4677, 4740, 6236, 6399, 7110, 7795, 8532, 9354, 10665, 12798, 14031, 14220, 15590, 18708, 21330, 23385, 25596, 28062, 31180, 31995, 42093, 42660, 46770, 56124, 63990, 70155, 84186, 93540, 123161, 126279, 127980, 140310, 168372, 210465, 246322, 252558, 280620, 369483, 420930, 492644, 505116, 615805, 631395, 738966, 841860, 1108449, 1231610, 1262790, 1477932, 1847415, 2216898, 2463220, 2525580, 3325347, 3694830, 4433796, 5542245, 6650694, 7389660, 9976041, 11084490, 13301388, 16626735, 19952082, 22168980, 33253470, 39904164, 49880205, 66506940, 99760410, 199520820]

約数ペア:

[(1, 199520820), (2, 99760410), (3, 66506940), (4, 49880205), (5, 39904164), (6, 33253470), (9, 22168980), (10, 19952082), (12, 16626735), (15, 13301388), (18, 11084490), (20, 9976041), (27, 7389660), (30, 6650694), (36, 5542245), (45, 4433796), (54, 3694830), (60, 3325347), (79, 2525580), (81, 2463220), (90, 2216898), (108, 1847415), (135, 1477932), (158, 1262790), (162, 1231610), (180, 1108449), (237, 841860), (270, 738966), (316, 631395), (324, 615805), (395, 505116), (405, 492644), (474, 420930), (540, 369483), (711, 280620), (790, 252558), (810, 246322), (948, 210465), (1185, 168372), (1422, 140310), (1559, 127980), (1580, 126279), (1620, 123161), (2133, 93540), (2370, 84186), (2844, 70155), (3118, 63990), (3555, 56124), (4266, 46770), (4677, 42660), (4740, 42093), (6236, 31995), (6399, 31180), (7110, 28062), (7795, 25596), (8532, 23385), (9354, 21330), (10665, 18708), (12798, 15590), (14031, 14220)]