20116898120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:500

約数の個数: 192

約数和(自身を含む): 51356332800

約数和(自身を除く): 31239434680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 79, 86, 88, 110, 158, 172, 215, 220, 313, 316, 344, 395, 430, 440, 473, 626, 632, 790, 860, 869, 946, 1252, 1565, 1580, 1720, 1738, 1849, 1892, 2365, 2504, 3130, 3160, 3397, 3443, 3476, 3698, 3784, 4345, 4730, 6260, 6794, 6886, 6952, 7396, 8690, 9245, 9460, 12520, 13459, 13588, 13772, 14792, 16985, 17215, 17380, 18490, 18920, 20339, 24727, 26918, 27176, 27544, 33970, 34430, 34760, 36980, 37367, 40678, 49454, 53836, 67295, 67940, 68860, 73960, 74734, 81356, 98908, 101695, 107672, 123635, 134590, 135880, 137720, 146071, 148049, 149468, 162712, 186835, 197816, 203390, 247270, 269180, 271997, 292142, 296098, 298936, 373670, 406780, 494540, 538360, 543994, 578737, 584284, 592196, 730355, 740245, 747340, 813560, 989080, 1063261, 1087988, 1157474, 1168568, 1184392, 1359985, 1460710, 1480490, 1494680, 1606781, 2126522, 2175976, 2314948, 2719970, 2893685, 2921420, 2960980, 3213562, 4253044, 4629896, 5316305, 5439940, 5787370, 5842840, 5921960, 6366107, 6427124, 8033905, 8506088, 10632610, 10879880, 11574740, 11695871, 12732214, 12854248, 16067810, 21265220, 23149480, 23391742, 25464428, 31830535, 32135620, 42530440, 45720223, 46783484, 50928856, 58479355, 63661070, 64271240, 91440446, 93566968, 116958710, 127322140, 182880892, 228601115, 233917420, 254644280, 365761784, 457202230, 467834840, 502922453, 914404460, 1005844906, 1828808920, 2011689812, 2514612265, 4023379624, 5029224530, 10058449060, 20116898120]

約数ペア:

[(1, 20116898120), (2, 10058449060), (4, 5029224530), (5, 4023379624), (8, 2514612265), (10, 2011689812), (11, 1828808920), (20, 1005844906), (22, 914404460), (40, 502922453), (43, 467834840), (44, 457202230), (55, 365761784), (79, 254644280), (86, 233917420), (88, 228601115), (110, 182880892), (158, 127322140), (172, 116958710), (215, 93566968), (220, 91440446), (313, 64271240), (316, 63661070), (344, 58479355), (395, 50928856), (430, 46783484), (440, 45720223), (473, 42530440), (626, 32135620), (632, 31830535), (790, 25464428), (860, 23391742), (869, 23149480), (946, 21265220), (1252, 16067810), (1565, 12854248), (1580, 12732214), (1720, 11695871), (1738, 11574740), (1849, 10879880), (1892, 10632610), (2365, 8506088), (2504, 8033905), (3130, 6427124), (3160, 6366107), (3397, 5921960), (3443, 5842840), (3476, 5787370), (3698, 5439940), (3784, 5316305), (4345, 4629896), (4730, 4253044), (6260, 3213562), (6794, 2960980), (6886, 2921420), (6952, 2893685), (7396, 2719970), (8690, 2314948), (9245, 2175976), (9460, 2126522), (12520, 1606781), (13459, 1494680), (13588, 1480490), (13772, 1460710), (14792, 1359985), (16985, 1184392), (17215, 1168568), (17380, 1157474), (18490, 1087988), (18920, 1063261), (20339, 989080), (24727, 813560), (26918, 747340), (27176, 740245), (27544, 730355), (33970, 592196), (34430, 584284), (34760, 578737), (36980, 543994), (37367, 538360), (40678, 494540), (49454, 406780), (53836, 373670), (67295, 298936), (67940, 296098), (68860, 292142), (73960, 271997), (74734, 269180), (81356, 247270), (98908, 203390), (101695, 197816), (107672, 186835), (123635, 162712), (134590, 149468), (135880, 148049), (137720, 146071)]