828275740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{19997}}^1$

素因数の和:20134

約数の個数: 48

約数和(自身を含む): 1847815200

約数和(自身を除く): 1019539460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 2071, 2180, 4142, 8284, 10355, 19997, 20710, 39994, 41420, 79988, 99985, 199970, 379943, 399940, 759886, 1519772, 1899715, 2179673, 3799430, 4359346, 7598860, 8718692, 10898365, 21796730, 41413787, 43593460, 82827574, 165655148, 207068935, 414137870, 828275740]

約数ペア:

[(1, 828275740), (2, 414137870), (4, 207068935), (5, 165655148), (10, 82827574), (19, 43593460), (20, 41413787), (38, 21796730), (76, 10898365), (95, 8718692), (109, 7598860), (190, 4359346), (218, 3799430), (380, 2179673), (436, 1899715), (545, 1519772), (1090, 759886), (2071, 399940), (2180, 379943), (4142, 199970), (8284, 99985), (10355, 79988), (19997, 41420), (20710, 39994)]