394436720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{290027}}^1$

素因数の和:290057

約数の個数: 40

約数和(自身を含む): 971013744

約数和(自身を除く): 576577024

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 290027, 580054, 1160108, 1450135, 2320216, 2900270, 4640432, 4930459, 5800540, 9860918, 11601080, 19721836, 23202160, 24652295, 39443672, 49304590, 78887344, 98609180, 197218360, 394436720]

約数ペア:

[(1, 394436720), (2, 197218360), (4, 98609180), (5, 78887344), (8, 49304590), (10, 39443672), (16, 24652295), (17, 23202160), (20, 19721836), (34, 11601080), (40, 9860918), (68, 5800540), (80, 4930459), (85, 4640432), (136, 2900270), (170, 2320216), (272, 1450135), (340, 1160108), (680, 580054), (1360, 290027)]