26178440

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1021}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 59051160

約数和(自身を除く): 32872720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1021, 1282, 2042, 2564, 3205, 4084, 5105, 5128, 6410, 8168, 10210, 12820, 20420, 25640, 40840, 654461, 1308922, 2617844, 3272305, 5235688, 6544610, 13089220, 26178440]

約数ペア:

[(1, 26178440), (2, 13089220), (4, 6544610), (5, 5235688), (8, 3272305), (10, 2617844), (20, 1308922), (40, 654461), (641, 40840), (1021, 25640), (1282, 20420), (2042, 12820), (2564, 10210), (3205, 8168), (4084, 6410), (5105, 5128)]