78126260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 167650560

約数和(自身を除く): 89524300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 197, 251, 316, 394, 395, 502, 788, 790, 985, 1004, 1255, 1580, 1970, 2510, 3940, 5020, 15563, 19829, 31126, 39658, 49447, 62252, 77815, 79316, 98894, 99145, 155630, 197788, 198290, 247235, 311260, 396580, 494470, 988940, 3906313, 7812626, 15625252, 19531565, 39063130, 78126260]

約数ペア:

[(1, 78126260), (2, 39063130), (4, 19531565), (5, 15625252), (10, 7812626), (20, 3906313), (79, 988940), (158, 494470), (197, 396580), (251, 311260), (316, 247235), (394, 198290), (395, 197788), (502, 155630), (788, 99145), (790, 98894), (985, 79316), (1004, 77815), (1255, 62252), (1580, 49447), (1970, 39658), (2510, 31126), (3940, 19829), (5020, 15563)]