20184795160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1397839}}^1$

素因数の和:1397888

約数の個数: 48

約数和(自身を含む): 47931933600

約数和(自身を除く): 27747138440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 1397839, 2795678, 5591356, 6989195, 11182712, 13978390, 26558941, 27956780, 53117882, 55913560, 106235764, 132794705, 212471528, 265589410, 504619879, 531178820, 1009239758, 1062357640, 2018479516, 2523099395, 4036959032, 5046198790, 10092397580, 20184795160]

約数ペア:

[(1, 20184795160), (2, 10092397580), (4, 5046198790), (5, 4036959032), (8, 2523099395), (10, 2018479516), (19, 1062357640), (20, 1009239758), (38, 531178820), (40, 504619879), (76, 265589410), (95, 212471528), (152, 132794705), (190, 106235764), (361, 55913560), (380, 53117882), (722, 27956780), (760, 26558941), (1444, 13978390), (1805, 11182712), (2888, 6989195), (3610, 5591356), (7220, 2795678), (14440, 1397839)]