1989585

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 3931200

約数和(自身を除く): 1941615

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 179, 195, 247, 285, 537, 585, 741, 855, 895, 1235, 1611, 2223, 2327, 2685, 3401, 3705, 6981, 8055, 10203, 11115, 11635, 17005, 20943, 30609, 34905, 44213, 51015, 104715, 132639, 153045, 221065, 397917, 663195, 1989585]

約数ペア:

[(1, 1989585), (3, 663195), (5, 397917), (9, 221065), (13, 153045), (15, 132639), (19, 104715), (39, 51015), (45, 44213), (57, 34905), (65, 30609), (95, 20943), (117, 17005), (171, 11635), (179, 11115), (195, 10203), (247, 8055), (285, 6981), (537, 3705), (585, 3401), (741, 2685), (855, 2327), (895, 2223), (1235, 1611)]