15206520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 53475840

約数和(自身を除く): 38269320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 421, 430, 516, 602, 645, 840, 842, 860, 903, 1032, 1204, 1263, 1290, 1505, 1684, 1720, 1806, 2105, 2408, 2526, 2580, 2947, 3010, 3368, 3612, 4210, 4515, 5052, 5160, 5894, 6020, 6315, 7224, 8420, 8841, 9030, 10104, 11788, 12040, 12630, 14735, 16840, 17682, 18060, 18103, 23576, 25260, 29470, 35364, 36120, 36206, 44205, 50520, 54309, 58940, 70728, 72412, 88410, 90515, 108618, 117880, 126721, 144824, 176820, 181030, 217236, 253442, 271545, 353640, 362060, 380163, 434472, 506884, 543090, 633605, 724120, 760326, 1013768, 1086180, 1267210, 1520652, 1900815, 2172360, 2534420, 3041304, 3801630, 5068840, 7603260, 15206520]

約数ペア:

[(1, 15206520), (2, 7603260), (3, 5068840), (4, 3801630), (5, 3041304), (6, 2534420), (7, 2172360), (8, 1900815), (10, 1520652), (12, 1267210), (14, 1086180), (15, 1013768), (20, 760326), (21, 724120), (24, 633605), (28, 543090), (30, 506884), (35, 434472), (40, 380163), (42, 362060), (43, 353640), (56, 271545), (60, 253442), (70, 217236), (84, 181030), (86, 176820), (105, 144824), (120, 126721), (129, 117880), (140, 108618), (168, 90515), (172, 88410), (210, 72412), (215, 70728), (258, 58940), (280, 54309), (301, 50520), (344, 44205), (420, 36206), (421, 36120), (430, 35364), (516, 29470), (602, 25260), (645, 23576), (840, 18103), (842, 18060), (860, 17682), (903, 16840), (1032, 14735), (1204, 12630), (1263, 12040), (1290, 11788), (1505, 10104), (1684, 9030), (1720, 8841), (1806, 8420), (2105, 7224), (2408, 6315), (2526, 6020), (2580, 5894), (2947, 5160), (3010, 5052), (3368, 4515), (3612, 4210)]