81223380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9209}}^1$

素因数の和:9238

約数の個数: 108

約数和(自身を含む): 286633620

約数和(自身を除く): 205410240

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 9209, 18418, 27627, 36836, 46045, 55254, 64463, 82881, 92090, 110508, 128926, 138135, 165762, 184180, 193389, 257852, 276270, 322315, 331524, 386778, 414405, 451241, 552540, 580167, 644630, 773556, 828810, 902482, 966945, 1160334, 1289260, 1353723, 1657620, 1804964, 1933890, 2256205, 2320668, 2707446, 2900835, 3867780, 4061169, 4512410, 5414892, 5801670, 6768615, 8122338, 9024820, 11603340, 13537230, 16244676, 20305845, 27074460, 40611690, 81223380]

約数ペア:

[(1, 81223380), (2, 40611690), (3, 27074460), (4, 20305845), (5, 16244676), (6, 13537230), (7, 11603340), (9, 9024820), (10, 8122338), (12, 6768615), (14, 5801670), (15, 5414892), (18, 4512410), (20, 4061169), (21, 3867780), (28, 2900835), (30, 2707446), (35, 2320668), (36, 2256205), (42, 1933890), (45, 1804964), (49, 1657620), (60, 1353723), (63, 1289260), (70, 1160334), (84, 966945), (90, 902482), (98, 828810), (105, 773556), (126, 644630), (140, 580167), (147, 552540), (180, 451241), (196, 414405), (210, 386778), (245, 331524), (252, 322315), (294, 276270), (315, 257852), (420, 193389), (441, 184180), (490, 165762), (588, 138135), (630, 128926), (735, 110508), (882, 92090), (980, 82881), (1260, 64463), (1470, 55254), (1764, 46045), (2205, 36836), (2940, 27627), (4410, 18418), (8820, 9209)]