311915728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{1789}}^1$

素因数の和:2455

約数の個数: 40

約数和(自身を含む): 641242440

約数和(自身を除く): 329326712

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 641, 1282, 1789, 2564, 3578, 5128, 7156, 10256, 10897, 14312, 21794, 28624, 30413, 43588, 60826, 87176, 121652, 174352, 243304, 486608, 1146749, 2293498, 4586996, 9173992, 18347984, 19494733, 38989466, 77978932, 155957864, 311915728]

約数ペア:

[(1, 311915728), (2, 155957864), (4, 77978932), (8, 38989466), (16, 19494733), (17, 18347984), (34, 9173992), (68, 4586996), (136, 2293498), (272, 1146749), (641, 486608), (1282, 243304), (1789, 174352), (2564, 121652), (3578, 87176), (5128, 60826), (7156, 43588), (10256, 30413), (10897, 28624), (14312, 21794)]