28229370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72383}}^1$

素因数の和:72406

約数の個数: 32

約数和(自身を含む): 72963072

約数和(自身を除く): 44733702

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72383, 144766, 217149, 361915, 434298, 723830, 940979, 1085745, 1881958, 2171490, 2822937, 4704895, 5645874, 9409790, 14114685, 28229370]

約数ペア:

[(1, 28229370), (2, 14114685), (3, 9409790), (5, 5645874), (6, 4704895), (10, 2822937), (13, 2171490), (15, 1881958), (26, 1085745), (30, 940979), (39, 723830), (65, 434298), (78, 361915), (130, 217149), (195, 144766), (390, 72383)]