639232860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1521983}}^1$

素因数の和:1522002

約数の個数: 48

約数和(自身を含む): 2045546496

約数和(自身を除く): 1406313636

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, 1521983, 3043966, 4565949, 6087932, 7609915, 9131898, 10653881, 15219830, 18263796, 21307762, 22829745, 30439660, 31961643, 42615524, 45659490, 53269405, 63923286, 91318980, 106538810, 127846572, 159808215, 213077620, 319616430, 639232860]

約数ペア:

[(1, 639232860), (2, 319616430), (3, 213077620), (4, 159808215), (5, 127846572), (6, 106538810), (7, 91318980), (10, 63923286), (12, 53269405), (14, 45659490), (15, 42615524), (20, 31961643), (21, 30439660), (28, 22829745), (30, 21307762), (35, 18263796), (42, 15219830), (60, 10653881), (70, 9131898), (84, 7609915), (105, 6087932), (140, 4565949), (210, 3043966), (420, 1521983)]