217617640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1019}}^1$

素因数の和:1330

約数の個数: 64

約数和(自身を含む): 517752000

約数和(自身を除く): 300134360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 281, 380, 562, 760, 1019, 1124, 1405, 2038, 2248, 2810, 4076, 5095, 5339, 5620, 8152, 10190, 10678, 11240, 19361, 20380, 21356, 26695, 38722, 40760, 42712, 53390, 77444, 96805, 106780, 154888, 193610, 213560, 286339, 387220, 572678, 774440, 1145356, 1431695, 2290712, 2863390, 5440441, 5726780, 10880882, 11453560, 21761764, 27202205, 43523528, 54404410, 108808820, 217617640]

約数ペア:

[(1, 217617640), (2, 108808820), (4, 54404410), (5, 43523528), (8, 27202205), (10, 21761764), (19, 11453560), (20, 10880882), (38, 5726780), (40, 5440441), (76, 2863390), (95, 2290712), (152, 1431695), (190, 1145356), (281, 774440), (380, 572678), (562, 387220), (760, 286339), (1019, 213560), (1124, 193610), (1405, 154888), (2038, 106780), (2248, 96805), (2810, 77444), (4076, 53390), (5095, 42712), (5339, 40760), (5620, 38722), (8152, 26695), (10190, 21356), (10678, 20380), (11240, 19361)]