25800560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 64763712

約数和(自身を除く): 38963152

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 311, 340, 488, 610, 622, 680, 976, 1037, 1220, 1244, 1360, 1555, 2074, 2440, 2488, 3110, 4148, 4880, 4976, 5185, 5287, 6220, 8296, 10370, 10574, 12440, 16592, 18971, 20740, 21148, 24880, 26435, 37942, 41480, 42296, 52870, 75884, 82960, 84592, 94855, 105740, 151768, 189710, 211480, 303536, 322507, 379420, 422960, 645014, 758840, 1290028, 1517680, 1612535, 2580056, 3225070, 5160112, 6450140, 12900280, 25800560]

約数ペア:

[(1, 25800560), (2, 12900280), (4, 6450140), (5, 5160112), (8, 3225070), (10, 2580056), (16, 1612535), (17, 1517680), (20, 1290028), (34, 758840), (40, 645014), (61, 422960), (68, 379420), (80, 322507), (85, 303536), (122, 211480), (136, 189710), (170, 151768), (244, 105740), (272, 94855), (305, 84592), (311, 82960), (340, 75884), (488, 52870), (610, 42296), (622, 41480), (680, 37942), (976, 26435), (1037, 24880), (1220, 21148), (1244, 20740), (1360, 18971), (1555, 16592), (2074, 12440), (2440, 10574), (2488, 10370), (3110, 8296), (4148, 6220), (4880, 5287), (4976, 5185)]