20165720642

素因数分解:

$2^1\times {\mathrm{19}}^3\times {\mathrm{47}}^1\times {\mathrm{31277}}^1$

素因数の和:31383

約数の個数: 32

約数和(自身を含む): 32609191680

約数和(自身を除く): 12443471038

約数列:

[1, 2, 19, 38, 47, 94, 361, 722, 893, 1786, 6859, 13718, 16967, 31277, 33934, 62554, 322373, 594263, 644746, 1188526, 1470019, 2940038, 11290997, 22581994, 27930361, 55860722, 214528943, 429057886, 530676859, 1061353718, 10082860321, 20165720642]

約数ペア:

[(1, 20165720642), (2, 10082860321), (19, 1061353718), (38, 530676859), (47, 429057886), (94, 214528943), (361, 55860722), (722, 27930361), (893, 22581994), (1786, 11290997), (6859, 2940038), (13718, 1470019), (16967, 1188526), (31277, 644746), (33934, 594263), (62554, 322373)]