20199095408

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:1030

約数の個数: 80

約数和(自身を含む): 40199808000

約数和(自身を除く): 20000712592

約数列:

[1, 2, 4, 8, 16, 79, 131, 158, 199, 262, 316, 398, 524, 613, 632, 796, 1048, 1226, 1264, 1592, 2096, 2452, 3184, 4904, 9808, 10349, 15721, 20698, 26069, 31442, 41396, 48427, 52138, 62884, 80303, 82792, 96854, 104276, 121987, 125768, 160606, 165584, 193708, 208552, 243974, 251536, 321212, 387416, 417104, 487948, 642424, 774832, 975896, 1284848, 1951792, 2059451, 4118902, 6343937, 8237804, 9636973, 12687874, 15980297, 16475608, 19273946, 25375748, 31960594, 32951216, 38547892, 50751496, 63921188, 77095784, 101502992, 127842376, 154191568, 255684752, 1262443463, 2524886926, 5049773852, 10099547704, 20199095408]

約数ペア:

[(1, 20199095408), (2, 10099547704), (4, 5049773852), (8, 2524886926), (16, 1262443463), (79, 255684752), (131, 154191568), (158, 127842376), (199, 101502992), (262, 77095784), (316, 63921188), (398, 50751496), (524, 38547892), (613, 32951216), (632, 31960594), (796, 25375748), (1048, 19273946), (1226, 16475608), (1264, 15980297), (1592, 12687874), (2096, 9636973), (2452, 8237804), (3184, 6343937), (4904, 4118902), (9808, 2059451), (10349, 1951792), (15721, 1284848), (20698, 975896), (26069, 774832), (31442, 642424), (41396, 487948), (48427, 417104), (52138, 387416), (62884, 321212), (80303, 251536), (82792, 243974), (96854, 208552), (104276, 193708), (121987, 165584), (125768, 160606)]