20661376

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 43868160

約数和(自身を除く): 23206784

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 127, 128, 164, 248, 254, 328, 496, 508, 656, 992, 1016, 1271, 1312, 1984, 2032, 2542, 2624, 3937, 3968, 4064, 5084, 5207, 5248, 7874, 8128, 10168, 10414, 15748, 16256, 20336, 20828, 31496, 40672, 41656, 62992, 81344, 83312, 125984, 161417, 162688, 166624, 251968, 322834, 333248, 503936, 645668, 666496, 1291336, 2582672, 5165344, 10330688, 20661376]

約数ペア:

[(1, 20661376), (2, 10330688), (4, 5165344), (8, 2582672), (16, 1291336), (31, 666496), (32, 645668), (41, 503936), (62, 333248), (64, 322834), (82, 251968), (124, 166624), (127, 162688), (128, 161417), (164, 125984), (248, 83312), (254, 81344), (328, 62992), (496, 41656), (508, 40672), (656, 31496), (992, 20828), (1016, 20336), (1271, 16256), (1312, 15748), (1984, 10414), (2032, 10168), (2542, 8128), (2624, 7874), (3937, 5248), (3968, 5207), (4064, 5084)]