7178420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 16365888

約数和(自身を除く): 9187468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 491, 731, 860, 982, 1462, 1964, 2455, 2924, 3655, 4910, 7310, 8347, 9820, 14620, 16694, 21113, 33388, 41735, 42226, 83470, 84452, 105565, 166940, 211130, 358921, 422260, 717842, 1435684, 1794605, 3589210, 7178420]

約数ペア:

[(1, 7178420), (2, 3589210), (4, 1794605), (5, 1435684), (10, 717842), (17, 422260), (20, 358921), (34, 211130), (43, 166940), (68, 105565), (85, 84452), (86, 83470), (170, 42226), (172, 41735), (215, 33388), (340, 21113), (430, 16694), (491, 14620), (731, 9820), (860, 8347), (982, 7310), (1462, 4910), (1964, 3655), (2455, 2924)]