208941720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{887}}^1$

素因数の和:1065

約数の個数: 128

約数和(自身を含む): 680279040

約数和(自身を除く): 471337320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 151, 156, 195, 260, 302, 312, 390, 453, 520, 604, 755, 780, 887, 906, 1208, 1510, 1560, 1774, 1812, 1963, 2265, 2661, 3020, 3548, 3624, 3926, 4435, 4530, 5322, 5889, 6040, 7096, 7852, 8870, 9060, 9815, 10644, 11531, 11778, 13305, 15704, 17740, 18120, 19630, 21288, 23062, 23556, 26610, 29445, 34593, 35480, 39260, 46124, 47112, 53220, 57655, 58890, 69186, 78520, 92248, 106440, 115310, 117780, 133937, 138372, 172965, 230620, 235560, 267874, 276744, 345930, 401811, 461240, 535748, 669685, 691860, 803622, 1071496, 1339370, 1383720, 1607244, 1741181, 2009055, 2678740, 3214488, 3482362, 4018110, 5223543, 5357480, 6964724, 8036220, 8705905, 10447086, 13929448, 16072440, 17411810, 20894172, 26117715, 34823620, 41788344, 52235430, 69647240, 104470860, 208941720]

約数ペア:

[(1, 208941720), (2, 104470860), (3, 69647240), (4, 52235430), (5, 41788344), (6, 34823620), (8, 26117715), (10, 20894172), (12, 17411810), (13, 16072440), (15, 13929448), (20, 10447086), (24, 8705905), (26, 8036220), (30, 6964724), (39, 5357480), (40, 5223543), (52, 4018110), (60, 3482362), (65, 3214488), (78, 2678740), (104, 2009055), (120, 1741181), (130, 1607244), (151, 1383720), (156, 1339370), (195, 1071496), (260, 803622), (302, 691860), (312, 669685), (390, 535748), (453, 461240), (520, 401811), (604, 345930), (755, 276744), (780, 267874), (887, 235560), (906, 230620), (1208, 172965), (1510, 138372), (1560, 133937), (1774, 117780), (1812, 115310), (1963, 106440), (2265, 92248), (2661, 78520), (3020, 69186), (3548, 58890), (3624, 57655), (3926, 53220), (4435, 47112), (4530, 46124), (5322, 39260), (5889, 35480), (6040, 34593), (7096, 29445), (7852, 26610), (8870, 23556), (9060, 23062), (9815, 21288), (10644, 19630), (11531, 18120), (11778, 17740), (13305, 15704)]