28513960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 67910400

約数和(自身を除く): 39396440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 376, 470, 523, 580, 940, 1046, 1160, 1363, 1880, 2092, 2615, 2726, 4184, 5230, 5452, 6815, 10460, 10904, 13630, 15167, 20920, 24581, 27260, 30334, 49162, 54520, 60668, 75835, 98324, 121336, 122905, 151670, 196648, 245810, 303340, 491620, 606680, 712849, 983240, 1425698, 2851396, 3564245, 5702792, 7128490, 14256980, 28513960]

約数ペア:

[(1, 28513960), (2, 14256980), (4, 7128490), (5, 5702792), (8, 3564245), (10, 2851396), (20, 1425698), (29, 983240), (40, 712849), (47, 606680), (58, 491620), (94, 303340), (116, 245810), (145, 196648), (188, 151670), (232, 122905), (235, 121336), (290, 98324), (376, 75835), (470, 60668), (523, 54520), (580, 49162), (940, 30334), (1046, 27260), (1160, 24581), (1363, 20920), (1880, 15167), (2092, 13630), (2615, 10904), (2726, 10460), (4184, 6815), (5230, 5452)]