28380276

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{587}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 77051520

約数和(自身を除く): 48671244

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 79, 102, 153, 158, 204, 237, 306, 316, 474, 587, 612, 711, 948, 1174, 1343, 1422, 1761, 2348, 2686, 2844, 3522, 4029, 5283, 5372, 7044, 8058, 9979, 10566, 12087, 16116, 19958, 21132, 24174, 29937, 39916, 46373, 48348, 59874, 89811, 92746, 119748, 139119, 179622, 185492, 278238, 359244, 417357, 556476, 788341, 834714, 1576682, 1669428, 2365023, 3153364, 4730046, 7095069, 9460092, 14190138, 28380276]

約数ペア:

[(1, 28380276), (2, 14190138), (3, 9460092), (4, 7095069), (6, 4730046), (9, 3153364), (12, 2365023), (17, 1669428), (18, 1576682), (34, 834714), (36, 788341), (51, 556476), (68, 417357), (79, 359244), (102, 278238), (153, 185492), (158, 179622), (204, 139119), (237, 119748), (306, 92746), (316, 89811), (474, 59874), (587, 48348), (612, 46373), (711, 39916), (948, 29937), (1174, 24174), (1343, 21132), (1422, 19958), (1761, 16116), (2348, 12087), (2686, 10566), (2844, 9979), (3522, 8058), (4029, 7044), (5283, 5372)]