81527796

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:475

約数の個数: 120

約数和(自身を含む): 246646400

約数和(自身を除く): 165118604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 103, 108, 126, 162, 189, 206, 252, 309, 324, 349, 378, 412, 567, 618, 698, 721, 756, 927, 1047, 1134, 1236, 1396, 1442, 1854, 2094, 2163, 2268, 2443, 2781, 2884, 3141, 3708, 4188, 4326, 4886, 5562, 6282, 6489, 7329, 8343, 8652, 9423, 9772, 11124, 12564, 12978, 14658, 16686, 18846, 19467, 21987, 25956, 28269, 29316, 33372, 35947, 37692, 38934, 43974, 56538, 58401, 65961, 71894, 77868, 87948, 107841, 113076, 116802, 131922, 143788, 197883, 215682, 233604, 251629, 263844, 323523, 395766, 431364, 503258, 647046, 754887, 791532, 970569, 1006516, 1294092, 1509774, 1941138, 2264661, 2911707, 3019548, 3882276, 4529322, 5823414, 6793983, 9058644, 11646828, 13587966, 20381949, 27175932, 40763898, 81527796]

約数ペア:

[(1, 81527796), (2, 40763898), (3, 27175932), (4, 20381949), (6, 13587966), (7, 11646828), (9, 9058644), (12, 6793983), (14, 5823414), (18, 4529322), (21, 3882276), (27, 3019548), (28, 2911707), (36, 2264661), (42, 1941138), (54, 1509774), (63, 1294092), (81, 1006516), (84, 970569), (103, 791532), (108, 754887), (126, 647046), (162, 503258), (189, 431364), (206, 395766), (252, 323523), (309, 263844), (324, 251629), (349, 233604), (378, 215682), (412, 197883), (567, 143788), (618, 131922), (698, 116802), (721, 113076), (756, 107841), (927, 87948), (1047, 77868), (1134, 71894), (1236, 65961), (1396, 58401), (1442, 56538), (1854, 43974), (2094, 38934), (2163, 37692), (2268, 35947), (2443, 33372), (2781, 29316), (2884, 28269), (3141, 25956), (3708, 21987), (4188, 19467), (4326, 18846), (4886, 16686), (5562, 14658), (6282, 12978), (6489, 12564), (7329, 11124), (8343, 9772), (8652, 9423)]