641243948

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{18617}}^1$

素因数の和:18809

約数の個数: 24

約数和(自身を含む): 1146868800

約数和(自身を除く): 505624852

約数列:

[1, 2, 4, 79, 109, 158, 218, 316, 436, 8611, 17222, 18617, 34444, 37234, 74468, 1470743, 2029253, 2941486, 4058506, 5882972, 8117012, 160310987, 320621974, 641243948]

約数ペア:

[(1, 641243948), (2, 320621974), (4, 160310987), (79, 8117012), (109, 5882972), (158, 4058506), (218, 2941486), (316, 2029253), (436, 1470743), (8611, 74468), (17222, 37234), (18617, 34444)]