20163318128

素因数分解:

$2^4\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{40499}}^1$

素因数の和:40602

約数の個数: 60

約数和(自身を含む): 41554539000

約数和(自身を除く): 21391220872

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 841, 1073, 1682, 2146, 3364, 4292, 6728, 8584, 13456, 17168, 31117, 40499, 62234, 80998, 124468, 161996, 248936, 323992, 497872, 647984, 1174471, 1498463, 2348942, 2996926, 4697884, 5993852, 9395768, 11987704, 18791536, 23975408, 34059659, 43455427, 68119318, 86910854, 136238636, 173821708, 272477272, 347643416, 544954544, 695286832, 1260207383, 2520414766, 5040829532, 10081659064, 20163318128]

約数ペア:

[(1, 20163318128), (2, 10081659064), (4, 5040829532), (8, 2520414766), (16, 1260207383), (29, 695286832), (37, 544954544), (58, 347643416), (74, 272477272), (116, 173821708), (148, 136238636), (232, 86910854), (296, 68119318), (464, 43455427), (592, 34059659), (841, 23975408), (1073, 18791536), (1682, 11987704), (2146, 9395768), (3364, 5993852), (4292, 4697884), (6728, 2996926), (8584, 2348942), (13456, 1498463), (17168, 1174471), (31117, 647984), (40499, 497872), (62234, 323992), (80998, 248936), (124468, 161996)]