839020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 2173248

約数和(自身を除く): 1334228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 461, 910, 922, 1820, 1844, 2305, 3227, 4610, 5993, 6454, 9220, 11986, 12908, 16135, 23972, 29965, 32270, 41951, 59930, 64540, 83902, 119860, 167804, 209755, 419510, 839020]

約数ペア:

[(1, 839020), (2, 419510), (4, 209755), (5, 167804), (7, 119860), (10, 83902), (13, 64540), (14, 59930), (20, 41951), (26, 32270), (28, 29965), (35, 23972), (52, 16135), (65, 12908), (70, 11986), (91, 9220), (130, 6454), (140, 5993), (182, 4610), (260, 3227), (364, 2305), (455, 1844), (461, 1820), (910, 922)]