19901760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20731}}^1$

素因数の和:20751

約数の個数: 56

約数和(自身を含む): 63191136

約数和(自身を除く): 43289376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20731, 41462, 62193, 82924, 103655, 124386, 165848, 207310, 248772, 310965, 331696, 414620, 497544, 621930, 663392, 829240, 995088, 1243860, 1326784, 1658480, 1990176, 2487720, 3316960, 3980352, 4975440, 6633920, 9950880, 19901760]

約数ペア:

[(1, 19901760), (2, 9950880), (3, 6633920), (4, 4975440), (5, 3980352), (6, 3316960), (8, 2487720), (10, 1990176), (12, 1658480), (15, 1326784), (16, 1243860), (20, 995088), (24, 829240), (30, 663392), (32, 621930), (40, 497544), (48, 414620), (60, 331696), (64, 310965), (80, 248772), (96, 207310), (120, 165848), (160, 124386), (192, 103655), (240, 82924), (320, 62193), (480, 41462), (960, 20731)]