81147960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{331}}^1$

素因数の和:578

約数の個数: 128

約数和(自身を含む): 272505600

約数和(自身を除く): 191357640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 227, 270, 331, 360, 454, 540, 662, 681, 908, 993, 1080, 1135, 1324, 1362, 1655, 1816, 1986, 2043, 2270, 2648, 2724, 2979, 3310, 3405, 3972, 4086, 4540, 4965, 5448, 5958, 6129, 6620, 6810, 7944, 8172, 8937, 9080, 9930, 10215, 11916, 12258, 13240, 13620, 14895, 16344, 17874, 19860, 20430, 23832, 24516, 27240, 29790, 30645, 35748, 39720, 40860, 44685, 49032, 59580, 61290, 71496, 75137, 81720, 89370, 119160, 122580, 150274, 178740, 225411, 245160, 300548, 357480, 375685, 450822, 601096, 676233, 751370, 901644, 1127055, 1352466, 1502740, 1803288, 2028699, 2254110, 2704932, 3005480, 3381165, 4057398, 4508220, 5409864, 6762330, 8114796, 9016440, 10143495, 13524660, 16229592, 20286990, 27049320, 40573980, 81147960]

約数ペア:

[(1, 81147960), (2, 40573980), (3, 27049320), (4, 20286990), (5, 16229592), (6, 13524660), (8, 10143495), (9, 9016440), (10, 8114796), (12, 6762330), (15, 5409864), (18, 4508220), (20, 4057398), (24, 3381165), (27, 3005480), (30, 2704932), (36, 2254110), (40, 2028699), (45, 1803288), (54, 1502740), (60, 1352466), (72, 1127055), (90, 901644), (108, 751370), (120, 676233), (135, 601096), (180, 450822), (216, 375685), (227, 357480), (270, 300548), (331, 245160), (360, 225411), (454, 178740), (540, 150274), (662, 122580), (681, 119160), (908, 89370), (993, 81720), (1080, 75137), (1135, 71496), (1324, 61290), (1362, 59580), (1655, 49032), (1816, 44685), (1986, 40860), (2043, 39720), (2270, 35748), (2648, 30645), (2724, 29790), (2979, 27240), (3310, 24516), (3405, 23832), (3972, 20430), (4086, 19860), (4540, 17874), (4965, 16344), (5448, 14895), (5958, 13620), (6129, 13240), (6620, 12258), (6810, 11916), (7944, 10215), (8172, 9930), (8937, 9080)]