40397656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1249}}^1$

素因数の和:1579

約数の個数: 32

約数和(自身を含む): 81900000

約数和(自身を除く): 41502344

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 1244, 1249, 2488, 2498, 4043, 4996, 8086, 9992, 16172, 16237, 32344, 32474, 64948, 129896, 388439, 776878, 1553756, 3107512, 5049707, 10099414, 20198828, 40397656]

約数ペア:

[(1, 40397656), (2, 20198828), (4, 10099414), (8, 5049707), (13, 3107512), (26, 1553756), (52, 776878), (104, 388439), (311, 129896), (622, 64948), (1244, 32474), (1249, 32344), (2488, 16237), (2498, 16172), (4043, 9992), (4996, 8086)]