26118640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7963}}^1$

素因数の和:8017

約数の個数: 40

約数和(自身を含む): 62214768

約数和(自身を除く): 36096128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7963, 15926, 31852, 39815, 63704, 79630, 127408, 159260, 318520, 326483, 637040, 652966, 1305932, 1632415, 2611864, 3264830, 5223728, 6529660, 13059320, 26118640]

約数ペア:

[(1, 26118640), (2, 13059320), (4, 6529660), (5, 5223728), (8, 3264830), (10, 2611864), (16, 1632415), (20, 1305932), (40, 652966), (41, 637040), (80, 326483), (82, 318520), (164, 159260), (205, 127408), (328, 79630), (410, 63704), (656, 39815), (820, 31852), (1640, 15926), (3280, 7963)]