78844080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 160

約数和(自身を含む): 283696128

約数和(自身を除く): 204852048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 71, 80, 84, 105, 112, 120, 140, 142, 168, 210, 213, 240, 280, 284, 336, 355, 420, 426, 497, 560, 568, 661, 710, 840, 852, 994, 1065, 1136, 1322, 1420, 1491, 1680, 1704, 1983, 1988, 2130, 2485, 2644, 2840, 2982, 3305, 3408, 3966, 3976, 4260, 4627, 4970, 5288, 5680, 5964, 6610, 7455, 7932, 7952, 8520, 9254, 9915, 9940, 10576, 11928, 13220, 13881, 14910, 15864, 17040, 18508, 19830, 19880, 23135, 23856, 26440, 27762, 29820, 31728, 37016, 39660, 39760, 46270, 46931, 52880, 55524, 59640, 69405, 74032, 79320, 92540, 93862, 111048, 119280, 138810, 140793, 158640, 185080, 187724, 222096, 234655, 277620, 281586, 328517, 370160, 375448, 469310, 555240, 563172, 657034, 703965, 750896, 938620, 985551, 1110480, 1126344, 1314068, 1407930, 1642585, 1877240, 1971102, 2252688, 2628136, 2815860, 3285170, 3754480, 3942204, 4927755, 5256272, 5631720, 6570340, 7884408, 9855510, 11263440, 13140680, 15768816, 19711020, 26281360, 39422040, 78844080]

約数ペア:

[(1, 78844080), (2, 39422040), (3, 26281360), (4, 19711020), (5, 15768816), (6, 13140680), (7, 11263440), (8, 9855510), (10, 7884408), (12, 6570340), (14, 5631720), (15, 5256272), (16, 4927755), (20, 3942204), (21, 3754480), (24, 3285170), (28, 2815860), (30, 2628136), (35, 2252688), (40, 1971102), (42, 1877240), (48, 1642585), (56, 1407930), (60, 1314068), (70, 1126344), (71, 1110480), (80, 985551), (84, 938620), (105, 750896), (112, 703965), (120, 657034), (140, 563172), (142, 555240), (168, 469310), (210, 375448), (213, 370160), (240, 328517), (280, 281586), (284, 277620), (336, 234655), (355, 222096), (420, 187724), (426, 185080), (497, 158640), (560, 140793), (568, 138810), (661, 119280), (710, 111048), (840, 93862), (852, 92540), (994, 79320), (1065, 74032), (1136, 69405), (1322, 59640), (1420, 55524), (1491, 52880), (1680, 46931), (1704, 46270), (1983, 39760), (1988, 39660), (2130, 37016), (2485, 31728), (2644, 29820), (2840, 27762), (2982, 26440), (3305, 23856), (3408, 23135), (3966, 19880), (3976, 19830), (4260, 18508), (4627, 17040), (4970, 15864), (5288, 14910), (5680, 13881), (5964, 13220), (6610, 11928), (7455, 10576), (7932, 9940), (7952, 9915), (8520, 9254)]