20642970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{12983}}^1$

素因数の和:13046

約数の個数: 32

約数和(自身を含む): 50481792

約数和(自身を除く): 29838822

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 12983, 25966, 38949, 64915, 77898, 129830, 194745, 389490, 688099, 1376198, 2064297, 3440495, 4128594, 6880990, 10321485, 20642970]

約数ペア:

[(1, 20642970), (2, 10321485), (3, 6880990), (5, 4128594), (6, 3440495), (10, 2064297), (15, 1376198), (30, 688099), (53, 389490), (106, 194745), (159, 129830), (265, 77898), (318, 64915), (530, 38949), (795, 25966), (1590, 12983)]