1215264640

素因数分解:

$2^7\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4783}}^1$

素因数の和:5199

約数の個数: 64

約数和(自身を含む): 2913168960

約数和(自身を除く): 1697904320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 397, 640, 794, 1588, 1985, 3176, 3970, 4783, 6352, 7940, 9566, 12704, 15880, 19132, 23915, 25408, 31760, 38264, 47830, 50816, 63520, 76528, 95660, 127040, 153056, 191320, 254080, 306112, 382640, 612224, 765280, 1530560, 1898851, 3061120, 3797702, 7595404, 9494255, 15190808, 18988510, 30381616, 37977020, 60763232, 75954040, 121526464, 151908080, 243052928, 303816160, 607632320, 1215264640]

約数ペア:

[(1, 1215264640), (2, 607632320), (4, 303816160), (5, 243052928), (8, 151908080), (10, 121526464), (16, 75954040), (20, 60763232), (32, 37977020), (40, 30381616), (64, 18988510), (80, 15190808), (128, 9494255), (160, 7595404), (320, 3797702), (397, 3061120), (640, 1898851), (794, 1530560), (1588, 765280), (1985, 612224), (3176, 382640), (3970, 306112), (4783, 254080), (6352, 191320), (7940, 153056), (9566, 127040), (12704, 95660), (15880, 76528), (19132, 63520), (23915, 50816), (25408, 47830), (31760, 38264)]