378870910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:577

約数の個数: 64

約数和(自身を含む): 762048000

約数和(自身を除く): 383177090

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 139, 142, 278, 349, 355, 695, 698, 710, 781, 1390, 1529, 1562, 1745, 3058, 3490, 3839, 3905, 7645, 7678, 7810, 9869, 15290, 19195, 19738, 24779, 38390, 48511, 49345, 49558, 97022, 98690, 108559, 123895, 217118, 242555, 247790, 272569, 485110, 533621, 542795, 545138, 1067242, 1085590, 1362845, 2668105, 2725690, 3444281, 5336210, 6888562, 17221405, 34442810, 37887091, 75774182, 189435455, 378870910]

約数ペア:

[(1, 378870910), (2, 189435455), (5, 75774182), (10, 37887091), (11, 34442810), (22, 17221405), (55, 6888562), (71, 5336210), (110, 3444281), (139, 2725690), (142, 2668105), (278, 1362845), (349, 1085590), (355, 1067242), (695, 545138), (698, 542795), (710, 533621), (781, 485110), (1390, 272569), (1529, 247790), (1562, 242555), (1745, 217118), (3058, 123895), (3490, 108559), (3839, 98690), (3905, 97022), (7645, 49558), (7678, 49345), (7810, 48511), (9869, 38390), (15290, 24779), (19195, 19738)]