1490244820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{65419}}^1$

素因数の和:65512

約数の個数: 48

約数和(自身を含む): 3363111360

約数和(自身を除く): 1872866540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 65419, 130838, 261676, 327095, 654190, 1112123, 1308380, 2224246, 4383073, 4448492, 5560615, 8766146, 11121230, 17532292, 21915365, 22242460, 43830730, 74512241, 87661460, 149024482, 298048964, 372561205, 745122410, 1490244820]

約数ペア:

[(1, 1490244820), (2, 745122410), (4, 372561205), (5, 298048964), (10, 149024482), (17, 87661460), (20, 74512241), (34, 43830730), (67, 22242460), (68, 21915365), (85, 17532292), (134, 11121230), (170, 8766146), (268, 5560615), (335, 4448492), (340, 4383073), (670, 2224246), (1139, 1308380), (1340, 1112123), (2278, 654190), (4556, 327095), (5695, 261676), (11390, 130838), (22780, 65419)]