20251335

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 17851065

約数列:

[1, 3, 5, 13, 15, 17, 39, 41, 51, 65, 85, 123, 149, 195, 205, 221, 255, 447, 533, 615, 663, 697, 745, 1105, 1599, 1937, 2091, 2235, 2533, 2665, 3315, 3485, 5811, 6109, 7599, 7995, 9061, 9685, 10455, 12665, 18327, 27183, 29055, 30545, 32929, 37995, 45305, 79417, 91635, 98787, 103853, 135915, 164645, 238251, 311559, 397085, 493935, 519265, 1191255, 1350089, 1557795, 4050267, 6750445, 20251335]

約数ペア:

[(1, 20251335), (3, 6750445), (5, 4050267), (13, 1557795), (15, 1350089), (17, 1191255), (39, 519265), (41, 493935), (51, 397085), (65, 311559), (85, 238251), (123, 164645), (149, 135915), (195, 103853), (205, 98787), (221, 91635), (255, 79417), (447, 45305), (533, 37995), (615, 32929), (663, 30545), (697, 29055), (745, 27183), (1105, 18327), (1599, 12665), (1937, 10455), (2091, 9685), (2235, 9061), (2533, 7995), (2665, 7599), (3315, 6109), (3485, 5811)]