156640215

素因数分解:

$3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1\times {\mathrm{257}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 254119680

約数和(自身を除く): 97479465

約数列:

[1, 3, 5, 15, 179, 227, 257, 537, 681, 771, 895, 1135, 1285, 2685, 3405, 3855, 40633, 46003, 58339, 121899, 138009, 175017, 203165, 230015, 291695, 609495, 690045, 875085, 10442681, 31328043, 52213405, 156640215]

約数ペア:

[(1, 156640215), (3, 52213405), (5, 31328043), (15, 10442681), (179, 875085), (227, 690045), (257, 609495), (537, 291695), (681, 230015), (771, 203165), (895, 175017), (1135, 138009), (1285, 121899), (2685, 58339), (3405, 46003), (3855, 40633)]