1680451420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2049331}}^1$

素因数の和:2049381

約数の個数: 24

約数和(自身を含む): 3615021648

約数和(自身を除く): 1934570228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2049331, 4098662, 8197324, 10246655, 20493310, 40986620, 84022571, 168045142, 336090284, 420112855, 840225710, 1680451420]

約数ペア:

[(1, 1680451420), (2, 840225710), (4, 420112855), (5, 336090284), (10, 168045142), (20, 84022571), (41, 40986620), (82, 20493310), (164, 10246655), (205, 8197324), (410, 4098662), (820, 2049331)]