20178086508

素因数分解:

$2^2\times 3^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{43013}}^1$

素因数の和:43263

約数の個数: 72

約数和(自身を含む): 51950244528

約数和(自身を除く): 31772158020

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 83, 157, 166, 249, 314, 332, 471, 498, 628, 747, 942, 996, 1413, 1494, 1884, 2826, 2988, 5652, 13031, 26062, 39093, 43013, 52124, 78186, 86026, 117279, 129039, 156372, 172052, 234558, 258078, 387117, 469116, 516156, 774234, 1548468, 3570079, 6753041, 7140158, 10710237, 13506082, 14280316, 20259123, 21420474, 27012164, 32130711, 40518246, 42840948, 60777369, 64261422, 81036492, 121554738, 128522844, 243109476, 560502403, 1121004806, 1681507209, 2242009612, 3363014418, 5044521627, 6726028836, 10089043254, 20178086508]

約数ペア:

[(1, 20178086508), (2, 10089043254), (3, 6726028836), (4, 5044521627), (6, 3363014418), (9, 2242009612), (12, 1681507209), (18, 1121004806), (36, 560502403), (83, 243109476), (157, 128522844), (166, 121554738), (249, 81036492), (314, 64261422), (332, 60777369), (471, 42840948), (498, 40518246), (628, 32130711), (747, 27012164), (942, 21420474), (996, 20259123), (1413, 14280316), (1494, 13506082), (1884, 10710237), (2826, 7140158), (2988, 6753041), (5652, 3570079), (13031, 1548468), (26062, 774234), (39093, 516156), (43013, 469116), (52124, 387117), (78186, 258078), (86026, 234558), (117279, 172052), (129039, 156372)]