131723140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8243}}^1$

素因数の和:8316

約数の個数: 48

約数和(自身を含む): 299158272

約数和(自身を除く): 167435132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 7990, 8243, 15980, 16486, 32972, 41215, 82430, 140131, 164860, 280262, 387421, 560524, 700655, 774842, 1401310, 1549684, 1937105, 2802620, 3874210, 6586157, 7748420, 13172314, 26344628, 32930785, 65861570, 131723140]

約数ペア:

[(1, 131723140), (2, 65861570), (4, 32930785), (5, 26344628), (10, 13172314), (17, 7748420), (20, 6586157), (34, 3874210), (47, 2802620), (68, 1937105), (85, 1549684), (94, 1401310), (170, 774842), (188, 700655), (235, 560524), (340, 387421), (470, 280262), (799, 164860), (940, 140131), (1598, 82430), (3196, 41215), (3995, 32972), (7990, 16486), (8243, 15980)]