20122030640

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1389643}}^1$

素因数の和:1389837

約数の個数: 40

約数和(自身を含む): 47042228688

約数和(自身を除く): 26920198048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 1389643, 2779286, 5558572, 6948215, 11117144, 13896430, 22234288, 27792860, 55585720, 111171440, 251525383, 503050766, 1006101532, 1257626915, 2012203064, 2515253830, 4024406128, 5030507660, 10061015320, 20122030640]

約数ペア:

[(1, 20122030640), (2, 10061015320), (4, 5030507660), (5, 4024406128), (8, 2515253830), (10, 2012203064), (16, 1257626915), (20, 1006101532), (40, 503050766), (80, 251525383), (181, 111171440), (362, 55585720), (724, 27792860), (905, 22234288), (1448, 13896430), (1810, 11117144), (2896, 6948215), (3620, 5558572), (7240, 2779286), (14480, 1389643)]