20124287560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1295

約数の個数: 128

約数和(自身を含む): 49279104000

約数和(自身を除く): 29154816440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 239, 260, 386, 478, 520, 772, 839, 956, 965, 1195, 1544, 1678, 1912, 1930, 2390, 2509, 3107, 3356, 3860, 4195, 4780, 5018, 6214, 6712, 7720, 8390, 9560, 10036, 10907, 12428, 12545, 15535, 16780, 20072, 21814, 24856, 25090, 31070, 33560, 43628, 46127, 50180, 54535, 62140, 87256, 92254, 100360, 109070, 124280, 161927, 184508, 200521, 218140, 230635, 323854, 369016, 401042, 436280, 461270, 599651, 647708, 802084, 809635, 922540, 1002605, 1199302, 1295416, 1604168, 1619270, 1845080, 2005210, 2105051, 2398604, 2606773, 2998255, 3238540, 4010420, 4210102, 4797208, 5213546, 5996510, 6477080, 8020840, 8420204, 10427092, 10525255, 11993020, 13033865, 16840408, 20854184, 21050510, 23986040, 26067730, 38700553, 42101020, 52135460, 77401106, 84202040, 104270920, 154802212, 193502765, 309604424, 387005530, 503107189, 774011060, 1006214378, 1548022120, 2012428756, 2515535945, 4024857512, 5031071890, 10062143780, 20124287560]

約数ペア:

[(1, 20124287560), (2, 10062143780), (4, 5031071890), (5, 4024857512), (8, 2515535945), (10, 2012428756), (13, 1548022120), (20, 1006214378), (26, 774011060), (40, 503107189), (52, 387005530), (65, 309604424), (104, 193502765), (130, 154802212), (193, 104270920), (239, 84202040), (260, 77401106), (386, 52135460), (478, 42101020), (520, 38700553), (772, 26067730), (839, 23986040), (956, 21050510), (965, 20854184), (1195, 16840408), (1544, 13033865), (1678, 11993020), (1912, 10525255), (1930, 10427092), (2390, 8420204), (2509, 8020840), (3107, 6477080), (3356, 5996510), (3860, 5213546), (4195, 4797208), (4780, 4210102), (5018, 4010420), (6214, 3238540), (6712, 2998255), (7720, 2606773), (8390, 2398604), (9560, 2105051), (10036, 2005210), (10907, 1845080), (12428, 1619270), (12545, 1604168), (15535, 1295416), (16780, 1199302), (20072, 1002605), (21814, 922540), (24856, 809635), (25090, 802084), (31070, 647708), (33560, 599651), (43628, 461270), (46127, 436280), (50180, 401042), (54535, 369016), (62140, 323854), (87256, 230635), (92254, 218140), (100360, 200521), (109070, 184508), (124280, 161927)]