42380020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 93214800

約数和(自身を除く): 50834780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 178, 290, 356, 445, 580, 821, 890, 1642, 1780, 2581, 3284, 4105, 5162, 8210, 10324, 12905, 16420, 23809, 25810, 47618, 51620, 73069, 95236, 119045, 146138, 238090, 292276, 365345, 476180, 730690, 1461380, 2119001, 4238002, 8476004, 10595005, 21190010, 42380020]

約数ペア:

[(1, 42380020), (2, 21190010), (4, 10595005), (5, 8476004), (10, 4238002), (20, 2119001), (29, 1461380), (58, 730690), (89, 476180), (116, 365345), (145, 292276), (178, 238090), (290, 146138), (356, 119045), (445, 95236), (580, 73069), (821, 51620), (890, 47618), (1642, 25810), (1780, 23809), (2581, 16420), (3284, 12905), (4105, 10324), (5162, 8210)]