81441840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339341}}^1$

素因数の和:339357

約数の個数: 40

約数和(自身を含む): 252470448

約数和(自身を除く): 171028608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339341, 678682, 1018023, 1357364, 1696705, 2036046, 2714728, 3393410, 4072092, 5090115, 5429456, 6786820, 8144184, 10180230, 13573640, 16288368, 20360460, 27147280, 40720920, 81441840]

約数ペア:

[(1, 81441840), (2, 40720920), (3, 27147280), (4, 20360460), (5, 16288368), (6, 13573640), (8, 10180230), (10, 8144184), (12, 6786820), (15, 5429456), (16, 5090115), (20, 4072092), (24, 3393410), (30, 2714728), (40, 2036046), (48, 1696705), (60, 1357364), (80, 1018023), (120, 678682), (240, 339341)]