1441840

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 3414960

約数和(自身を除く): 1973120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 269, 335, 536, 538, 670, 1072, 1076, 1340, 1345, 2152, 2680, 2690, 4304, 5360, 5380, 10760, 18023, 21520, 36046, 72092, 90115, 144184, 180230, 288368, 360460, 720920, 1441840]

約数ペア:

[(1, 1441840), (2, 720920), (4, 360460), (5, 288368), (8, 180230), (10, 144184), (16, 90115), (20, 72092), (40, 36046), (67, 21520), (80, 18023), (134, 10760), (268, 5380), (269, 5360), (335, 4304), (536, 2690), (538, 2680), (670, 2152), (1072, 1345), (1076, 1340)]