18985173896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:919

約数の個数: 128

約数和(自身を含む): 40575427200

約数和(自身を除く): 21590253304

約数列:

[1, 2, 4, 8, 13, 26, 37, 43, 52, 74, 86, 104, 148, 172, 179, 296, 344, 358, 481, 559, 641, 716, 962, 1118, 1282, 1432, 1591, 1924, 2236, 2327, 2564, 3182, 3848, 4472, 4654, 5128, 6364, 6623, 7697, 8333, 9308, 12728, 13246, 15394, 16666, 18616, 20683, 23717, 26492, 27563, 30788, 33332, 41366, 47434, 52984, 55126, 61576, 66664, 82732, 86099, 94868, 100061, 110252, 114739, 165464, 172198, 189736, 200122, 220504, 229478, 284789, 308321, 344396, 358319, 400244, 458956, 569578, 616642, 688792, 716638, 800488, 917912, 1019831, 1139156, 1233284, 1433276, 1491607, 2039662, 2278312, 2466568, 2866552, 2983214, 3702257, 4079324, 4245343, 4933777, 5966428, 7404514, 8158648, 8490686, 9867554, 11932856, 13257803, 14809028, 16981372, 19735108, 26515606, 29618056, 33962744, 39470216, 53031212, 55189459, 64139101, 106062424, 110378918, 128278202, 182549749, 220757836, 256556404, 365099498, 441515672, 513112808, 730198996, 1460397992, 2373146737, 4746293474, 9492586948, 18985173896]

約数ペア:

[(1, 18985173896), (2, 9492586948), (4, 4746293474), (8, 2373146737), (13, 1460397992), (26, 730198996), (37, 513112808), (43, 441515672), (52, 365099498), (74, 256556404), (86, 220757836), (104, 182549749), (148, 128278202), (172, 110378918), (179, 106062424), (296, 64139101), (344, 55189459), (358, 53031212), (481, 39470216), (559, 33962744), (641, 29618056), (716, 26515606), (962, 19735108), (1118, 16981372), (1282, 14809028), (1432, 13257803), (1591, 11932856), (1924, 9867554), (2236, 8490686), (2327, 8158648), (2564, 7404514), (3182, 5966428), (3848, 4933777), (4472, 4245343), (4654, 4079324), (5128, 3702257), (6364, 2983214), (6623, 2866552), (7697, 2466568), (8333, 2278312), (9308, 2039662), (12728, 1491607), (13246, 1433276), (15394, 1233284), (16666, 1139156), (18616, 1019831), (20683, 917912), (23717, 800488), (26492, 716638), (27563, 688792), (30788, 616642), (33332, 569578), (41366, 458956), (47434, 400244), (52984, 358319), (55126, 344396), (61576, 308321), (66664, 284789), (82732, 229478), (86099, 220504), (94868, 200122), (100061, 189736), (110252, 172198), (114739, 165464)]