31376240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1366

約数の個数: 80

約数和(自身を含む): 85375488

約数和(自身を除く): 53999248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1303, 1505, 1720, 2408, 2606, 3010, 3440, 4816, 5212, 6020, 6515, 9121, 10424, 12040, 13030, 18242, 20848, 24080, 26060, 36484, 45605, 52120, 56029, 72968, 91210, 104240, 112058, 145936, 182420, 224116, 280145, 364840, 392203, 448232, 560290, 729680, 784406, 896464, 1120580, 1568812, 1961015, 2241160, 3137624, 3922030, 4482320, 6275248, 7844060, 15688120, 31376240]

約数ペア:

[(1, 31376240), (2, 15688120), (4, 7844060), (5, 6275248), (7, 4482320), (8, 3922030), (10, 3137624), (14, 2241160), (16, 1961015), (20, 1568812), (28, 1120580), (35, 896464), (40, 784406), (43, 729680), (56, 560290), (70, 448232), (80, 392203), (86, 364840), (112, 280145), (140, 224116), (172, 182420), (215, 145936), (280, 112058), (301, 104240), (344, 91210), (430, 72968), (560, 56029), (602, 52120), (688, 45605), (860, 36484), (1204, 26060), (1303, 24080), (1505, 20848), (1720, 18242), (2408, 13030), (2606, 12040), (3010, 10424), (3440, 9121), (4816, 6515), (5212, 6020)]