1016320

素因数分解:

$2^9\times 5^1\times {\mathrm{397}}^1$

素因数の和:420

約数の個数: 40

約数和(自身を含む): 2442924

約数和(自身を除く): 1426604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 397, 512, 640, 794, 1280, 1588, 1985, 2560, 3176, 3970, 6352, 7940, 12704, 15880, 25408, 31760, 50816, 63520, 101632, 127040, 203264, 254080, 508160, 1016320]

約数ペア:

[(1, 1016320), (2, 508160), (4, 254080), (5, 203264), (8, 127040), (10, 101632), (16, 63520), (20, 50816), (32, 31760), (40, 25408), (64, 15880), (80, 12704), (128, 7940), (160, 6352), (256, 3970), (320, 3176), (397, 2560), (512, 1985), (640, 1588), (794, 1280)]