155721840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{648841}}^1$

素因数の和:648857

約数の個数: 40

約数和(自身を含む): 482738448

約数和(自身を除く): 327016608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 648841, 1297682, 1946523, 2595364, 3244205, 3893046, 5190728, 6488410, 7786092, 9732615, 10381456, 12976820, 15572184, 19465230, 25953640, 31144368, 38930460, 51907280, 77860920, 155721840]

約数ペア:

[(1, 155721840), (2, 77860920), (3, 51907280), (4, 38930460), (5, 31144368), (6, 25953640), (8, 19465230), (10, 15572184), (12, 12976820), (15, 10381456), (16, 9732615), (20, 7786092), (24, 6488410), (30, 5190728), (40, 3893046), (48, 3244205), (60, 2595364), (80, 1946523), (120, 1297682), (240, 648841)]