2019025520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283571}}^1$

素因数の和:283673

約数の個数: 40

約数和(自身を含む): 4746995280

約数和(自身を除く): 2727969760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 283571, 567142, 1134284, 1417855, 2268568, 2835710, 4537136, 5671420, 11342840, 22685680, 25237819, 50475638, 100951276, 126189095, 201902552, 252378190, 403805104, 504756380, 1009512760, 2019025520]

約数ペア:

[(1, 2019025520), (2, 1009512760), (4, 504756380), (5, 403805104), (8, 252378190), (10, 201902552), (16, 126189095), (20, 100951276), (40, 50475638), (80, 25237819), (89, 22685680), (178, 11342840), (356, 5671420), (445, 4537136), (712, 2835710), (890, 2268568), (1424, 1417855), (1780, 1134284), (3560, 567142), (7120, 283571)]