399706970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{1451}}^1$

素因数の和:1647

約数の個数: 48

約数和(自身を含む): 784393632

約数和(自身を除く): 384686662

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 169, 326, 338, 815, 845, 1451, 1630, 1690, 2119, 2902, 4238, 7255, 10595, 14510, 18863, 21190, 27547, 37726, 55094, 94315, 137735, 188630, 236513, 245219, 275470, 473026, 490438, 1182565, 1226095, 2365130, 2452190, 3074669, 6149338, 15373345, 30746690, 39970697, 79941394, 199853485, 399706970]

約数ペア:

[(1, 399706970), (2, 199853485), (5, 79941394), (10, 39970697), (13, 30746690), (26, 15373345), (65, 6149338), (130, 3074669), (163, 2452190), (169, 2365130), (326, 1226095), (338, 1182565), (815, 490438), (845, 473026), (1451, 275470), (1630, 245219), (1690, 236513), (2119, 188630), (2902, 137735), (4238, 94315), (7255, 55094), (10595, 37726), (14510, 27547), (18863, 21190)]