78190525

素因数分解:

$5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 122135040

約数和(自身を除く): 43944515

約数列:

[1, 5, 7, 25, 29, 31, 35, 49, 71, 145, 155, 175, 203, 217, 245, 355, 497, 725, 775, 899, 1015, 1085, 1225, 1421, 1519, 1775, 2059, 2201, 2485, 3479, 4495, 5075, 5425, 6293, 7105, 7595, 10295, 11005, 12425, 14413, 15407, 17395, 22475, 31465, 35525, 37975, 44051, 51475, 55025, 63829, 72065, 77035, 86975, 100891, 107849, 157325, 220255, 319145, 360325, 385175, 446803, 504455, 539245, 1101275, 1595725, 2234015, 2522275, 2696225, 3127621, 11170075, 15638105, 78190525]

約数ペア:

[(1, 78190525), (5, 15638105), (7, 11170075), (25, 3127621), (29, 2696225), (31, 2522275), (35, 2234015), (49, 1595725), (71, 1101275), (145, 539245), (155, 504455), (175, 446803), (203, 385175), (217, 360325), (245, 319145), (355, 220255), (497, 157325), (725, 107849), (775, 100891), (899, 86975), (1015, 77035), (1085, 72065), (1225, 63829), (1421, 55025), (1519, 51475), (1775, 44051), (2059, 37975), (2201, 35525), (2485, 31465), (3479, 22475), (4495, 17395), (5075, 15407), (5425, 14413), (6293, 12425), (7105, 11005), (7595, 10295)]