31321440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{21751}}^1$

素因数の和:21772

約数の個数: 72

約数和(自身を含む): 106889328

約数和(自身を除く): 75567888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 21751, 43502, 65253, 87004, 108755, 130506, 174008, 195759, 217510, 261012, 326265, 348016, 391518, 435020, 522024, 652530, 696032, 783036, 870040, 978795, 1044048, 1305060, 1566072, 1740080, 1957590, 2088096, 2610120, 3132144, 3480160, 3915180, 5220240, 6264288, 7830360, 10440480, 15660720, 31321440]

約数ペア:

[(1, 31321440), (2, 15660720), (3, 10440480), (4, 7830360), (5, 6264288), (6, 5220240), (8, 3915180), (9, 3480160), (10, 3132144), (12, 2610120), (15, 2088096), (16, 1957590), (18, 1740080), (20, 1566072), (24, 1305060), (30, 1044048), (32, 978795), (36, 870040), (40, 783036), (45, 696032), (48, 652530), (60, 522024), (72, 435020), (80, 391518), (90, 348016), (96, 326265), (120, 261012), (144, 217510), (160, 195759), (180, 174008), (240, 130506), (288, 108755), (360, 87004), (480, 65253), (720, 43502), (1440, 21751)]