131019420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{311951}}^1$

素因数の和:311970

約数の個数: 48

約数和(自身を含む): 419263488

約数和(自身を除く): 288244068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 311951, 623902, 935853, 1247804, 1559755, 1871706, 2183657, 3119510, 3743412, 4367314, 4679265, 6239020, 6550971, 8734628, 9358530, 10918285, 13101942, 18717060, 21836570, 26203884, 32754855, 43673140, 65509710, 131019420]

約数ペア:

[(1, 131019420), (2, 65509710), (3, 43673140), (4, 32754855), (5, 26203884), (6, 21836570), (7, 18717060), (10, 13101942), (12, 10918285), (14, 9358530), (15, 8734628), (20, 6550971), (21, 6239020), (28, 4679265), (30, 4367314), (35, 3743412), (42, 3119510), (60, 2183657), (70, 1871706), (84, 1559755), (105, 1247804), (140, 935853), (210, 623902), (420, 311951)]