31209080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15923}}^1$

素因数の和:15948

約数の個数: 48

約数和(自身を含む): 81690120

約数和(自身を除く): 50481040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15923, 31846, 63692, 79615, 111461, 127384, 159230, 222922, 318460, 445844, 557305, 636920, 780227, 891688, 1114610, 1560454, 2229220, 3120908, 3901135, 4458440, 6241816, 7802270, 15604540, 31209080]

約数ペア:

[(1, 31209080), (2, 15604540), (4, 7802270), (5, 6241816), (7, 4458440), (8, 3901135), (10, 3120908), (14, 2229220), (20, 1560454), (28, 1114610), (35, 891688), (40, 780227), (49, 636920), (56, 557305), (70, 445844), (98, 318460), (140, 222922), (196, 159230), (245, 127384), (280, 111461), (392, 79615), (490, 63692), (980, 31846), (1960, 15923)]