20149984900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{2579}}^1$

素因数の和:2738

約数の個数: 144

約数和(自身を含む): 47296972800

約数和(自身を除く): 27146987900

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 79, 86, 92, 100, 115, 158, 172, 215, 230, 316, 395, 430, 460, 575, 790, 860, 989, 1075, 1150, 1580, 1817, 1975, 1978, 2150, 2300, 2579, 3397, 3634, 3950, 3956, 4300, 4945, 5158, 6794, 7268, 7900, 9085, 9890, 10316, 12895, 13588, 16985, 18170, 19780, 24725, 25790, 33970, 36340, 45425, 49450, 51580, 59317, 64475, 67940, 78131, 84925, 90850, 98900, 110897, 118634, 128950, 156262, 169850, 181700, 203741, 221794, 237268, 257900, 296585, 312524, 339700, 390655, 407482, 443588, 554485, 593170, 781310, 814964, 1018705, 1108970, 1186340, 1482925, 1562620, 1953275, 2037410, 2217940, 2550631, 2772425, 2965850, 3906550, 4074820, 4686043, 5093525, 5101262, 5544850, 5931700, 7813100, 8760863, 9372086, 10187050, 10202524, 11089700, 12753155, 17521726, 18744172, 20374100, 23430215, 25506310, 35043452, 43804315, 46860430, 51012620, 63765775, 87608630, 93720860, 117151075, 127531550, 175217260, 201499849, 219021575, 234302150, 255063100, 402999698, 438043150, 468604300, 805999396, 876086300, 1007499245, 2014998490, 4029996980, 5037496225, 10074992450, 20149984900]

約数ペア:

[(1, 20149984900), (2, 10074992450), (4, 5037496225), (5, 4029996980), (10, 2014998490), (20, 1007499245), (23, 876086300), (25, 805999396), (43, 468604300), (46, 438043150), (50, 402999698), (79, 255063100), (86, 234302150), (92, 219021575), (100, 201499849), (115, 175217260), (158, 127531550), (172, 117151075), (215, 93720860), (230, 87608630), (316, 63765775), (395, 51012620), (430, 46860430), (460, 43804315), (575, 35043452), (790, 25506310), (860, 23430215), (989, 20374100), (1075, 18744172), (1150, 17521726), (1580, 12753155), (1817, 11089700), (1975, 10202524), (1978, 10187050), (2150, 9372086), (2300, 8760863), (2579, 7813100), (3397, 5931700), (3634, 5544850), (3950, 5101262), (3956, 5093525), (4300, 4686043), (4945, 4074820), (5158, 3906550), (6794, 2965850), (7268, 2772425), (7900, 2550631), (9085, 2217940), (9890, 2037410), (10316, 1953275), (12895, 1562620), (13588, 1482925), (16985, 1186340), (18170, 1108970), (19780, 1018705), (24725, 814964), (25790, 781310), (33970, 593170), (36340, 554485), (45425, 443588), (49450, 407482), (51580, 390655), (59317, 339700), (64475, 312524), (67940, 296585), (78131, 257900), (84925, 237268), (90850, 221794), (98900, 203741), (110897, 181700), (118634, 169850), (128950, 156262)]