20423248

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 40997376

約数和(自身を除く): 20574128

約数列:

[1, 2, 4, 8, 16, 41, 82, 163, 164, 191, 326, 328, 382, 652, 656, 764, 1304, 1528, 2608, 3056, 6683, 7831, 13366, 15662, 26732, 31133, 31324, 53464, 62266, 62648, 106928, 124532, 125296, 249064, 498128, 1276453, 2552906, 5105812, 10211624, 20423248]

約数ペア:

[(1, 20423248), (2, 10211624), (4, 5105812), (8, 2552906), (16, 1276453), (41, 498128), (82, 249064), (163, 125296), (164, 124532), (191, 106928), (326, 62648), (328, 62266), (382, 53464), (652, 31324), (656, 31133), (764, 26732), (1304, 15662), (1528, 13366), (2608, 7831), (3056, 6683)]