20131852520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{2971}}^1$

素因数の和:3235

約数の個数: 128

約数和(自身を含む): 49699923840

約数和(自身を除く): 29568071320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 157, 166, 260, 314, 332, 415, 520, 628, 664, 785, 830, 1079, 1256, 1570, 1660, 2041, 2158, 2971, 3140, 3320, 4082, 4316, 5395, 5942, 6280, 8164, 8632, 10205, 10790, 11884, 13031, 14855, 16328, 20410, 21580, 23768, 26062, 29710, 38623, 40820, 43160, 52124, 59420, 65155, 77246, 81640, 104248, 118840, 130310, 154492, 169403, 193115, 246593, 260620, 308984, 338806, 386230, 466447, 493186, 521240, 677612, 772460, 847015, 932894, 986372, 1232965, 1355224, 1544920, 1694030, 1865788, 1972744, 2332235, 2465930, 3205709, 3388060, 3731576, 4664470, 4931860, 6063811, 6411418, 6776120, 9328940, 9863720, 12127622, 12822836, 16028545, 18657880, 24255244, 25645672, 30319055, 32057090, 38715101, 48510488, 60638110, 64114180, 77430202, 121276220, 128228360, 154860404, 193575505, 242552440, 309720808, 387151010, 503296313, 774302020, 1006592626, 1548604040, 2013185252, 2516481565, 4026370504, 5032963130, 10065926260, 20131852520]

約数ペア:

[(1, 20131852520), (2, 10065926260), (4, 5032963130), (5, 4026370504), (8, 2516481565), (10, 2013185252), (13, 1548604040), (20, 1006592626), (26, 774302020), (40, 503296313), (52, 387151010), (65, 309720808), (83, 242552440), (104, 193575505), (130, 154860404), (157, 128228360), (166, 121276220), (260, 77430202), (314, 64114180), (332, 60638110), (415, 48510488), (520, 38715101), (628, 32057090), (664, 30319055), (785, 25645672), (830, 24255244), (1079, 18657880), (1256, 16028545), (1570, 12822836), (1660, 12127622), (2041, 9863720), (2158, 9328940), (2971, 6776120), (3140, 6411418), (3320, 6063811), (4082, 4931860), (4316, 4664470), (5395, 3731576), (5942, 3388060), (6280, 3205709), (8164, 2465930), (8632, 2332235), (10205, 1972744), (10790, 1865788), (11884, 1694030), (13031, 1544920), (14855, 1355224), (16328, 1232965), (20410, 986372), (21580, 932894), (23768, 847015), (26062, 772460), (29710, 677612), (38623, 521240), (40820, 493186), (43160, 466447), (52124, 386230), (59420, 338806), (65155, 308984), (77246, 260620), (81640, 246593), (104248, 193115), (118840, 169403), (130310, 154492)]