20988630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17939}}^1$

素因数の和:17965

約数の個数: 48

約数和(自身を含む): 58771440

約数和(自身を除く): 37782810

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, 17939, 35878, 53817, 89695, 107634, 161451, 179390, 233207, 269085, 322902, 466414, 538170, 699621, 807255, 1166035, 1399242, 1614510, 2098863, 2332070, 3498105, 4197726, 6996210, 10494315, 20988630]

約数ペア:

[(1, 20988630), (2, 10494315), (3, 6996210), (5, 4197726), (6, 3498105), (9, 2332070), (10, 2098863), (13, 1614510), (15, 1399242), (18, 1166035), (26, 807255), (30, 699621), (39, 538170), (45, 466414), (65, 322902), (78, 269085), (90, 233207), (117, 179390), (130, 161451), (195, 107634), (234, 89695), (390, 53817), (585, 35878), (1170, 17939)]