18859295

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 28129920

約数和(自身を除く): 9270625

約数列:

[1, 5, 7, 13, 35, 65, 91, 181, 229, 455, 905, 1145, 1267, 1603, 2353, 2977, 6335, 8015, 11765, 14885, 16471, 20839, 41449, 82355, 104195, 207245, 290143, 538837, 1450715, 2694185, 3771859, 18859295]

約数ペア:

[(1, 18859295), (5, 3771859), (7, 2694185), (13, 1450715), (35, 538837), (65, 290143), (91, 207245), (181, 104195), (229, 82355), (455, 41449), (905, 20839), (1145, 16471), (1267, 14885), (1603, 11765), (2353, 8015), (2977, 6335)]