289088920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1\times {\mathrm{401}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 664264800

約数和(自身を除く): 375175880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 269, 335, 401, 536, 538, 670, 802, 1076, 1340, 1345, 1604, 2005, 2152, 2680, 2690, 3208, 4010, 5380, 8020, 10760, 16040, 18023, 26867, 36046, 53734, 72092, 90115, 107468, 107869, 134335, 144184, 180230, 214936, 215738, 268670, 360460, 431476, 537340, 539345, 720920, 862952, 1074680, 1078690, 2157380, 4314760, 7227223, 14454446, 28908892, 36136115, 57817784, 72272230, 144544460, 289088920]

約数ペア:

[(1, 289088920), (2, 144544460), (4, 72272230), (5, 57817784), (8, 36136115), (10, 28908892), (20, 14454446), (40, 7227223), (67, 4314760), (134, 2157380), (268, 1078690), (269, 1074680), (335, 862952), (401, 720920), (536, 539345), (538, 537340), (670, 431476), (802, 360460), (1076, 268670), (1340, 215738), (1345, 214936), (1604, 180230), (2005, 144184), (2152, 134335), (2680, 107869), (2690, 107468), (3208, 90115), (4010, 72092), (5380, 53734), (8020, 36046), (10760, 26867), (16040, 18023)]