90683920

素因数分解:

$2^4\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1091}}^1$

素因数の和:2143

約数の個数: 40

約数和(自身を含む): 211236480

約数和(自身を除く): 120552560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1039, 1091, 2078, 2182, 4156, 4364, 5195, 5455, 8312, 8728, 10390, 10910, 16624, 17456, 20780, 21820, 41560, 43640, 83120, 87280, 1133549, 2267098, 4534196, 5667745, 9068392, 11335490, 18136784, 22670980, 45341960, 90683920]

約数ペア:

[(1, 90683920), (2, 45341960), (4, 22670980), (5, 18136784), (8, 11335490), (10, 9068392), (16, 5667745), (20, 4534196), (40, 2267098), (80, 1133549), (1039, 87280), (1091, 83120), (2078, 43640), (2182, 41560), (4156, 21820), (4364, 20780), (5195, 17456), (5455, 16624), (8312, 10910), (8728, 10390)]