1681404920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2593}}^1$

素因数の和:2689

約数の個数: 128

約数和(自身を含む): 4314340800

約数和(自身を除く): 2632935880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 43, 52, 58, 65, 86, 104, 116, 130, 145, 172, 215, 232, 260, 290, 344, 377, 430, 520, 559, 580, 754, 860, 1118, 1160, 1247, 1508, 1720, 1885, 2236, 2494, 2593, 2795, 3016, 3770, 4472, 4988, 5186, 5590, 6235, 7540, 9976, 10372, 11180, 12470, 12965, 15080, 16211, 20744, 22360, 24940, 25930, 32422, 33709, 49880, 51860, 64844, 67418, 75197, 81055, 103720, 111499, 129688, 134836, 150394, 162110, 168545, 222998, 269672, 300788, 324220, 337090, 375985, 445996, 557495, 601576, 648440, 674180, 751970, 891992, 977561, 1114990, 1348360, 1449487, 1503940, 1955122, 2229980, 2898974, 3007880, 3233471, 3910244, 4459960, 4887805, 5797948, 6466942, 7247435, 7820488, 9775610, 11595896, 12933884, 14494870, 16167355, 19551220, 25867768, 28989740, 32334710, 39102440, 42035123, 57979480, 64669420, 84070246, 129338840, 168140492, 210175615, 336280984, 420351230, 840702460, 1681404920]

約数ペア:

[(1, 1681404920), (2, 840702460), (4, 420351230), (5, 336280984), (8, 210175615), (10, 168140492), (13, 129338840), (20, 84070246), (26, 64669420), (29, 57979480), (40, 42035123), (43, 39102440), (52, 32334710), (58, 28989740), (65, 25867768), (86, 19551220), (104, 16167355), (116, 14494870), (130, 12933884), (145, 11595896), (172, 9775610), (215, 7820488), (232, 7247435), (260, 6466942), (290, 5797948), (344, 4887805), (377, 4459960), (430, 3910244), (520, 3233471), (559, 3007880), (580, 2898974), (754, 2229980), (860, 1955122), (1118, 1503940), (1160, 1449487), (1247, 1348360), (1508, 1114990), (1720, 977561), (1885, 891992), (2236, 751970), (2494, 674180), (2593, 648440), (2795, 601576), (3016, 557495), (3770, 445996), (4472, 375985), (4988, 337090), (5186, 324220), (5590, 300788), (6235, 269672), (7540, 222998), (9976, 168545), (10372, 162110), (11180, 150394), (12470, 134836), (12965, 129688), (15080, 111499), (16211, 103720), (20744, 81055), (22360, 75197), (24940, 67418), (25930, 64844), (32422, 51860), (33709, 49880)]