42210280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{647}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 109175040

約数和(自身を除く): 66964760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 466, 647, 932, 1165, 1294, 1631, 1864, 2330, 2588, 3235, 3262, 4529, 4660, 5176, 6470, 6524, 8155, 9058, 9320, 12940, 13048, 16310, 18116, 22645, 25880, 32620, 36232, 45290, 65240, 90580, 150751, 181160, 301502, 603004, 753755, 1055257, 1206008, 1507510, 2110514, 3015020, 4221028, 5276285, 6030040, 8442056, 10552570, 21105140, 42210280]

約数ペア:

[(1, 42210280), (2, 21105140), (4, 10552570), (5, 8442056), (7, 6030040), (8, 5276285), (10, 4221028), (14, 3015020), (20, 2110514), (28, 1507510), (35, 1206008), (40, 1055257), (56, 753755), (70, 603004), (140, 301502), (233, 181160), (280, 150751), (466, 90580), (647, 65240), (932, 45290), (1165, 36232), (1294, 32620), (1631, 25880), (1864, 22645), (2330, 18116), (2588, 16310), (3235, 13048), (3262, 12940), (4529, 9320), (4660, 9058), (5176, 8155), (6470, 6524)]