71978148004

素因数分解:

$2^2\times 7^4\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:1015

約数の個数: 120

約数和(自身を含む): 150177071520

約数和(自身を除く): 78198923516

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 107, 178, 196, 214, 343, 356, 428, 623, 686, 749, 787, 1246, 1372, 1498, 1574, 2401, 2492, 2996, 3148, 4361, 4802, 5243, 5509, 8722, 9523, 9604, 10486, 11018, 17444, 19046, 20972, 22036, 30527, 36701, 38092, 38563, 61054, 66661, 70043, 73402, 77126, 84209, 122108, 133322, 140086, 146804, 154252, 168418, 213689, 256907, 266644, 269941, 280172, 336836, 427378, 466627, 490301, 513814, 539882, 589463, 854756, 933254, 980602, 1027628, 1079764, 1178926, 1866508, 1889587, 1961204, 2357852, 3266389, 3432107, 3779174, 4126241, 6532778, 6864214, 7494601, 7558348, 8252482, 13065556, 13728428, 14989202, 16504964, 22864723, 24024749, 28883687, 29978404, 45729446, 48049498, 52462207, 57767374, 91458892, 96098996, 104924414, 115534748, 168173243, 202185809, 209848828, 336346486, 367235449, 404371618, 672692972, 734470898, 808743236, 1468941796, 2570648143, 5141296286, 10282592572, 17994537001, 35989074002, 71978148004]

約数ペア:

[(1, 71978148004), (2, 35989074002), (4, 17994537001), (7, 10282592572), (14, 5141296286), (28, 2570648143), (49, 1468941796), (89, 808743236), (98, 734470898), (107, 672692972), (178, 404371618), (196, 367235449), (214, 336346486), (343, 209848828), (356, 202185809), (428, 168173243), (623, 115534748), (686, 104924414), (749, 96098996), (787, 91458892), (1246, 57767374), (1372, 52462207), (1498, 48049498), (1574, 45729446), (2401, 29978404), (2492, 28883687), (2996, 24024749), (3148, 22864723), (4361, 16504964), (4802, 14989202), (5243, 13728428), (5509, 13065556), (8722, 8252482), (9523, 7558348), (9604, 7494601), (10486, 6864214), (11018, 6532778), (17444, 4126241), (19046, 3779174), (20972, 3432107), (22036, 3266389), (30527, 2357852), (36701, 1961204), (38092, 1889587), (38563, 1866508), (61054, 1178926), (66661, 1079764), (70043, 1027628), (73402, 980602), (77126, 933254), (84209, 854756), (122108, 589463), (133322, 539882), (140086, 513814), (146804, 490301), (154252, 466627), (168418, 427378), (213689, 336836), (256907, 280172), (266644, 269941)]