784420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 2032128

約数和(自身を除く): 1247708

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 431, 455, 862, 910, 1724, 1820, 2155, 3017, 4310, 5603, 6034, 8620, 11206, 12068, 15085, 22412, 28015, 30170, 39221, 56030, 60340, 78442, 112060, 156884, 196105, 392210, 784420]

約数ペア:

[(1, 784420), (2, 392210), (4, 196105), (5, 156884), (7, 112060), (10, 78442), (13, 60340), (14, 56030), (20, 39221), (26, 30170), (28, 28015), (35, 22412), (52, 15085), (65, 12068), (70, 11206), (91, 8620), (130, 6034), (140, 5603), (182, 4310), (260, 3017), (364, 2155), (431, 1820), (455, 1724), (862, 910)]