20399820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48571}}^1$

素因数の和:48590

約数の個数: 48

約数和(自身を含む): 65280768

約数和(自身を除く): 44880948

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, 48571, 97142, 145713, 194284, 242855, 291426, 339997, 485710, 582852, 679994, 728565, 971420, 1019991, 1359988, 1457130, 1699985, 2039982, 2914260, 3399970, 4079964, 5099955, 6799940, 10199910, 20399820]

約数ペア:

[(1, 20399820), (2, 10199910), (3, 6799940), (4, 5099955), (5, 4079964), (6, 3399970), (7, 2914260), (10, 2039982), (12, 1699985), (14, 1457130), (15, 1359988), (20, 1019991), (21, 971420), (28, 728565), (30, 679994), (35, 582852), (42, 485710), (60, 339997), (70, 291426), (84, 242855), (105, 194284), (140, 145713), (210, 97142), (420, 48571)]