209817320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{947}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 491443200

約数和(自身を除く): 281625880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 191, 232, 290, 382, 580, 764, 947, 955, 1160, 1528, 1894, 1910, 3788, 3820, 4735, 5539, 7576, 7640, 9470, 11078, 18940, 22156, 27463, 27695, 37880, 44312, 54926, 55390, 109852, 110780, 137315, 180877, 219704, 221560, 274630, 361754, 549260, 723508, 904385, 1098520, 1447016, 1808770, 3617540, 5245433, 7235080, 10490866, 20981732, 26227165, 41963464, 52454330, 104908660, 209817320]

約数ペア:

[(1, 209817320), (2, 104908660), (4, 52454330), (5, 41963464), (8, 26227165), (10, 20981732), (20, 10490866), (29, 7235080), (40, 5245433), (58, 3617540), (116, 1808770), (145, 1447016), (191, 1098520), (232, 904385), (290, 723508), (382, 549260), (580, 361754), (764, 274630), (947, 221560), (955, 219704), (1160, 180877), (1528, 137315), (1894, 110780), (1910, 109852), (3788, 55390), (3820, 54926), (4735, 44312), (5539, 37880), (7576, 27695), (7640, 27463), (9470, 22156), (11078, 18940)]