19006840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 45684000

約数和(自身を除く): 26677160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 281, 356, 380, 445, 562, 712, 760, 890, 1124, 1405, 1691, 1780, 2248, 2810, 3382, 3560, 5339, 5620, 6764, 8455, 10678, 11240, 13528, 16910, 21356, 25009, 26695, 33820, 42712, 50018, 53390, 67640, 100036, 106780, 125045, 200072, 213560, 250090, 475171, 500180, 950342, 1000360, 1900684, 2375855, 3801368, 4751710, 9503420, 19006840]

約数ペア:

[(1, 19006840), (2, 9503420), (4, 4751710), (5, 3801368), (8, 2375855), (10, 1900684), (19, 1000360), (20, 950342), (38, 500180), (40, 475171), (76, 250090), (89, 213560), (95, 200072), (152, 125045), (178, 106780), (190, 100036), (281, 67640), (356, 53390), (380, 50018), (445, 42712), (562, 33820), (712, 26695), (760, 25009), (890, 21356), (1124, 16910), (1405, 13528), (1691, 11240), (1780, 10678), (2248, 8455), (2810, 6764), (3382, 5620), (3560, 5339)]