2006138840

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1\times {\mathrm{691}}^1$

素因数の和:1284

約数の個数: 64

約数和(自身を含む): 4556653920

約数和(自身を除く): 2550515080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 401, 691, 724, 802, 905, 1382, 1448, 1604, 1810, 2005, 2764, 3208, 3455, 3620, 4010, 5528, 6910, 7240, 8020, 13820, 16040, 27640, 72581, 125071, 145162, 250142, 277091, 290324, 362905, 500284, 554182, 580648, 625355, 725810, 1000568, 1108364, 1250710, 1385455, 1451620, 2216728, 2501420, 2770910, 2903240, 5002840, 5541820, 11083640, 50153471, 100306942, 200613884, 250767355, 401227768, 501534710, 1003069420, 2006138840]

約数ペア:

[(1, 2006138840), (2, 1003069420), (4, 501534710), (5, 401227768), (8, 250767355), (10, 200613884), (20, 100306942), (40, 50153471), (181, 11083640), (362, 5541820), (401, 5002840), (691, 2903240), (724, 2770910), (802, 2501420), (905, 2216728), (1382, 1451620), (1448, 1385455), (1604, 1250710), (1810, 1108364), (2005, 1000568), (2764, 725810), (3208, 625355), (3455, 580648), (3620, 554182), (4010, 500284), (5528, 362905), (6910, 290324), (7240, 277091), (8020, 250142), (13820, 145162), (16040, 125071), (27640, 72581)]