20860385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 32772096

約数和(自身を除く): 11911711

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 127, 133, 247, 361, 455, 635, 665, 889, 1235, 1651, 1729, 1805, 2413, 2527, 4445, 4693, 8255, 8645, 11557, 12065, 12635, 16891, 23465, 31369, 32851, 45847, 57785, 84455, 156845, 164255, 219583, 229235, 320929, 596011, 1097915, 1604645, 2980055, 4172077, 20860385]

約数ペア:

[(1, 20860385), (5, 4172077), (7, 2980055), (13, 1604645), (19, 1097915), (35, 596011), (65, 320929), (91, 229235), (95, 219583), (127, 164255), (133, 156845), (247, 84455), (361, 57785), (455, 45847), (635, 32851), (665, 31369), (889, 23465), (1235, 16891), (1651, 12635), (1729, 12065), (1805, 11557), (2413, 8645), (2527, 8255), (4445, 4693)]