31308290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 65270016

約数和(自身を除く): 33961726

約数列:

[1, 2, 5, 10, 13, 23, 26, 37, 46, 65, 74, 115, 130, 185, 230, 283, 299, 370, 481, 566, 598, 851, 962, 1415, 1495, 1702, 2405, 2830, 2990, 3679, 4255, 4810, 6509, 7358, 8510, 10471, 11063, 13018, 18395, 20942, 22126, 32545, 36790, 52355, 55315, 65090, 84617, 104710, 110630, 136123, 169234, 240833, 272246, 423085, 481666, 680615, 846170, 1204165, 1361230, 2408330, 3130829, 6261658, 15654145, 31308290]

約数ペア:

[(1, 31308290), (2, 15654145), (5, 6261658), (10, 3130829), (13, 2408330), (23, 1361230), (26, 1204165), (37, 846170), (46, 680615), (65, 481666), (74, 423085), (115, 272246), (130, 240833), (185, 169234), (230, 136123), (283, 110630), (299, 104710), (370, 84617), (481, 65090), (566, 55315), (598, 52355), (851, 36790), (962, 32545), (1415, 22126), (1495, 20942), (1702, 18395), (2405, 13018), (2830, 11063), (2990, 10471), (3679, 8510), (4255, 7358), (4810, 6509)]