8889640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 21275100

約数和(自身を除く): 12385460

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 769, 1156, 1445, 1538, 2312, 2890, 3076, 3845, 5780, 6152, 7690, 11560, 13073, 15380, 26146, 30760, 52292, 65365, 104584, 130730, 222241, 261460, 444482, 522920, 888964, 1111205, 1777928, 2222410, 4444820, 8889640]

約数ペア:

[(1, 8889640), (2, 4444820), (4, 2222410), (5, 1777928), (8, 1111205), (10, 888964), (17, 522920), (20, 444482), (34, 261460), (40, 222241), (68, 130730), (85, 104584), (136, 65365), (170, 52292), (289, 30760), (340, 26146), (578, 15380), (680, 13073), (769, 11560), (1156, 7690), (1445, 6152), (1538, 5780), (2312, 3845), (2890, 3076)]