20756880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:373

約数の個数: 120

約数和(自身を含む): 70566912

約数和(自身を除く): 49810032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 127, 144, 180, 227, 240, 254, 360, 381, 454, 508, 635, 681, 720, 762, 908, 1016, 1135, 1143, 1270, 1362, 1524, 1816, 1905, 2032, 2043, 2270, 2286, 2540, 2724, 3048, 3405, 3632, 3810, 4086, 4540, 4572, 5080, 5448, 5715, 6096, 6810, 7620, 8172, 9080, 9144, 10160, 10215, 10896, 11430, 13620, 15240, 16344, 18160, 18288, 20430, 22860, 27240, 28829, 30480, 32688, 40860, 45720, 54480, 57658, 81720, 86487, 91440, 115316, 144145, 163440, 172974, 230632, 259461, 288290, 345948, 432435, 461264, 518922, 576580, 691896, 864870, 1037844, 1153160, 1297305, 1383792, 1729740, 2075688, 2306320, 2594610, 3459480, 4151376, 5189220, 6918960, 10378440, 20756880]

約数ペア:

[(1, 20756880), (2, 10378440), (3, 6918960), (4, 5189220), (5, 4151376), (6, 3459480), (8, 2594610), (9, 2306320), (10, 2075688), (12, 1729740), (15, 1383792), (16, 1297305), (18, 1153160), (20, 1037844), (24, 864870), (30, 691896), (36, 576580), (40, 518922), (45, 461264), (48, 432435), (60, 345948), (72, 288290), (80, 259461), (90, 230632), (120, 172974), (127, 163440), (144, 144145), (180, 115316), (227, 91440), (240, 86487), (254, 81720), (360, 57658), (381, 54480), (454, 45720), (508, 40860), (635, 32688), (681, 30480), (720, 28829), (762, 27240), (908, 22860), (1016, 20430), (1135, 18288), (1143, 18160), (1270, 16344), (1362, 15240), (1524, 13620), (1816, 11430), (1905, 10896), (2032, 10215), (2043, 10160), (2270, 9144), (2286, 9080), (2540, 8172), (2724, 7620), (3048, 6810), (3405, 6096), (3632, 5715), (3810, 5448), (4086, 5080), (4540, 4572)]