20029295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 28607040

約数和(自身を除く): 8577745

約数列:

[1, 5, 11, 13, 55, 65, 109, 143, 257, 545, 715, 1199, 1285, 1417, 2827, 3341, 5995, 7085, 14135, 15587, 16705, 28013, 36751, 77935, 140065, 183755, 308143, 364169, 1540715, 1820845, 4005859, 20029295]

約数ペア:

[(1, 20029295), (5, 4005859), (11, 1820845), (13, 1540715), (55, 364169), (65, 308143), (109, 183755), (143, 140065), (257, 77935), (545, 36751), (715, 28013), (1199, 16705), (1285, 15587), (1417, 14135), (2827, 7085), (3341, 5995)]