19640790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16787}}^1$

素因数の和:16813

約数の個数: 48

約数和(自身を含む): 54997488

約数和(自身を除く): 35356698

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 16787, 33574, 50361, 83935, 100722, 151083, 167870, 218231, 251805, 302166, 436462, 503610, 654693, 755415, 1091155, 1309386, 1510830, 1964079, 2182310, 3273465, 3928158, 6546930, 9820395, 19640790]

約数ペア:

[(1, 19640790), (2, 9820395), (3, 6546930), (5, 3928158), (6, 3273465), (9, 2182310), (10, 1964079), (13, 1510830), (15, 1309386), (18, 1091155), (26, 755415), (30, 654693), (39, 503610), (45, 436462), (65, 302166), (78, 251805), (90, 218231), (117, 167870), (130, 151083), (195, 100722), (234, 83935), (390, 50361), (585, 33574), (1170, 16787)]