129740025

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 221128704

約数和(自身を除く): 91388679

約数列:

[1, 3, 5, 15, 25, 53, 75, 127, 159, 257, 265, 381, 635, 771, 795, 1285, 1325, 1905, 3175, 3855, 3975, 6425, 6731, 9525, 13621, 19275, 20193, 32639, 33655, 40863, 68105, 97917, 100965, 163195, 168275, 204315, 340525, 489585, 504825, 815975, 1021575, 1729867, 2447925, 5189601, 8649335, 25948005, 43246675, 129740025]

約数ペア:

[(1, 129740025), (3, 43246675), (5, 25948005), (15, 8649335), (25, 5189601), (53, 2447925), (75, 1729867), (127, 1021575), (159, 815975), (257, 504825), (265, 489585), (381, 340525), (635, 204315), (771, 168275), (795, 163195), (1285, 100965), (1325, 97917), (1905, 68105), (3175, 40863), (3855, 33655), (3975, 32639), (6425, 20193), (6731, 19275), (9525, 13621)]