31113740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 79427040

約数和(自身を除く): 48313300

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 769, 1156, 1190, 1445, 1538, 2023, 2380, 2890, 3076, 3845, 4046, 5383, 5780, 7690, 8092, 10115, 10766, 13073, 15380, 20230, 21532, 26146, 26915, 40460, 52292, 53830, 65365, 91511, 107660, 130730, 183022, 222241, 261460, 366044, 444482, 457555, 888964, 915110, 1111205, 1555687, 1830220, 2222410, 3111374, 4444820, 6222748, 7778435, 15556870, 31113740]

約数ペア:

[(1, 31113740), (2, 15556870), (4, 7778435), (5, 6222748), (7, 4444820), (10, 3111374), (14, 2222410), (17, 1830220), (20, 1555687), (28, 1111205), (34, 915110), (35, 888964), (68, 457555), (70, 444482), (85, 366044), (119, 261460), (140, 222241), (170, 183022), (238, 130730), (289, 107660), (340, 91511), (476, 65365), (578, 53830), (595, 52292), (769, 40460), (1156, 26915), (1190, 26146), (1445, 21532), (1538, 20230), (2023, 15380), (2380, 13073), (2890, 10766), (3076, 10115), (3845, 8092), (4046, 7690), (5383, 5780)]