78687440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2609}}^1$

素因数の和:2664

約数の個数: 80

約数和(自身を含む): 203893200

約数和(自身を除く): 125205760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2320, 2609, 3016, 3770, 5218, 6032, 7540, 10436, 13045, 15080, 20872, 26090, 30160, 33917, 41744, 52180, 67834, 75661, 104360, 135668, 151322, 169585, 208720, 271336, 302644, 339170, 378305, 542672, 605288, 678340, 756610, 983593, 1210576, 1356680, 1513220, 1967186, 2713360, 3026440, 3934372, 4917965, 6052880, 7868744, 9835930, 15737488, 19671860, 39343720, 78687440]

約数ペア:

[(1, 78687440), (2, 39343720), (4, 19671860), (5, 15737488), (8, 9835930), (10, 7868744), (13, 6052880), (16, 4917965), (20, 3934372), (26, 3026440), (29, 2713360), (40, 1967186), (52, 1513220), (58, 1356680), (65, 1210576), (80, 983593), (104, 756610), (116, 678340), (130, 605288), (145, 542672), (208, 378305), (232, 339170), (260, 302644), (290, 271336), (377, 208720), (464, 169585), (520, 151322), (580, 135668), (754, 104360), (1040, 75661), (1160, 67834), (1508, 52180), (1885, 41744), (2320, 33917), (2609, 30160), (3016, 26090), (3770, 20872), (5218, 15080), (6032, 13045), (7540, 10436)]