20111843120

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1091}}^1\times {\mathrm{1759}}^1$

素因数の和:2994

約数の個数: 80

約数和(自身を含む): 47186979840

約数和(自身を除く): 27075136720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1091, 1310, 1759, 2096, 2182, 2620, 3518, 4364, 5240, 5455, 7036, 8728, 8795, 10480, 10910, 14072, 17456, 17590, 21820, 28144, 35180, 43640, 70360, 87280, 140720, 142921, 230429, 285842, 460858, 571684, 714605, 921716, 1143368, 1152145, 1429210, 1843432, 1919069, 2286736, 2304290, 2858420, 3686864, 3838138, 4608580, 5716840, 7676276, 9217160, 9595345, 11433680, 15352552, 18434320, 19190690, 30705104, 38381380, 76762760, 153525520, 251398039, 502796078, 1005592156, 1256990195, 2011184312, 2513980390, 4022368624, 5027960780, 10055921560, 20111843120]

約数ペア:

[(1, 20111843120), (2, 10055921560), (4, 5027960780), (5, 4022368624), (8, 2513980390), (10, 2011184312), (16, 1256990195), (20, 1005592156), (40, 502796078), (80, 251398039), (131, 153525520), (262, 76762760), (524, 38381380), (655, 30705104), (1048, 19190690), (1091, 18434320), (1310, 15352552), (1759, 11433680), (2096, 9595345), (2182, 9217160), (2620, 7676276), (3518, 5716840), (4364, 4608580), (5240, 3838138), (5455, 3686864), (7036, 2858420), (8728, 2304290), (8795, 2286736), (10480, 1919069), (10910, 1843432), (14072, 1429210), (17456, 1152145), (17590, 1143368), (21820, 921716), (28144, 714605), (35180, 571684), (43640, 460858), (70360, 285842), (87280, 230429), (140720, 142921)]