20586800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 120

約数和(自身を含む): 55215216

約数和(自身を除く): 34628416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 37, 40, 50, 52, 65, 74, 80, 100, 104, 107, 130, 148, 185, 200, 208, 214, 260, 296, 325, 370, 400, 428, 481, 520, 535, 592, 650, 740, 856, 925, 962, 1040, 1070, 1300, 1391, 1480, 1712, 1850, 1924, 2140, 2405, 2600, 2675, 2782, 2960, 3700, 3848, 3959, 4280, 4810, 5200, 5350, 5564, 6955, 7400, 7696, 7918, 8560, 9620, 10700, 11128, 12025, 13910, 14800, 15836, 19240, 19795, 21400, 22256, 24050, 27820, 31672, 34775, 38480, 39590, 42800, 48100, 51467, 55640, 63344, 69550, 79180, 96200, 98975, 102934, 111280, 139100, 158360, 192400, 197950, 205868, 257335, 278200, 316720, 395900, 411736, 514670, 556400, 791800, 823472, 1029340, 1286675, 1583600, 2058680, 2573350, 4117360, 5146700, 10293400, 20586800]

約数ペア:

[(1, 20586800), (2, 10293400), (4, 5146700), (5, 4117360), (8, 2573350), (10, 2058680), (13, 1583600), (16, 1286675), (20, 1029340), (25, 823472), (26, 791800), (37, 556400), (40, 514670), (50, 411736), (52, 395900), (65, 316720), (74, 278200), (80, 257335), (100, 205868), (104, 197950), (107, 192400), (130, 158360), (148, 139100), (185, 111280), (200, 102934), (208, 98975), (214, 96200), (260, 79180), (296, 69550), (325, 63344), (370, 55640), (400, 51467), (428, 48100), (481, 42800), (520, 39590), (535, 38480), (592, 34775), (650, 31672), (740, 27820), (856, 24050), (925, 22256), (962, 21400), (1040, 19795), (1070, 19240), (1300, 15836), (1391, 14800), (1480, 13910), (1712, 12025), (1850, 11128), (1924, 10700), (2140, 9620), (2405, 8560), (2600, 7918), (2675, 7696), (2782, 7400), (2960, 6955), (3700, 5564), (3848, 5350), (3959, 5200), (4280, 4810)]