18994024

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 42681600

約数和(自身を除く): 23687576

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 89, 103, 148, 178, 206, 259, 296, 356, 412, 518, 623, 712, 721, 824, 1036, 1246, 1442, 2072, 2492, 2884, 3293, 3811, 4984, 5768, 6586, 7622, 9167, 13172, 15244, 18334, 23051, 26344, 26677, 30488, 36668, 46102, 53354, 64169, 73336, 92204, 106708, 128338, 184408, 213416, 256676, 339179, 513352, 678358, 1356716, 2374253, 2713432, 4748506, 9497012, 18994024]

約数ペア:

[(1, 18994024), (2, 9497012), (4, 4748506), (7, 2713432), (8, 2374253), (14, 1356716), (28, 678358), (37, 513352), (56, 339179), (74, 256676), (89, 213416), (103, 184408), (148, 128338), (178, 106708), (206, 92204), (259, 73336), (296, 64169), (356, 53354), (412, 46102), (518, 36668), (623, 30488), (712, 26677), (721, 26344), (824, 23051), (1036, 18334), (1246, 15244), (1442, 13172), (2072, 9167), (2492, 7622), (2884, 6586), (3293, 5768), (3811, 4984)]