81319040

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11551}}^1$

素因数の和:11581

約数の個数: 64

約数和(自身を含む): 212094720

約数和(自身を除く): 130775680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 11551, 23102, 46204, 57755, 92408, 115510, 127061, 184816, 231020, 254122, 369632, 462040, 508244, 635305, 739264, 924080, 1016488, 1270610, 1478528, 1848160, 2032976, 2541220, 3696320, 4065952, 5082440, 7392640, 8131904, 10164880, 16263808, 20329760, 40659520, 81319040]

約数ペア:

[(1, 81319040), (2, 40659520), (4, 20329760), (5, 16263808), (8, 10164880), (10, 8131904), (11, 7392640), (16, 5082440), (20, 4065952), (22, 3696320), (32, 2541220), (40, 2032976), (44, 1848160), (55, 1478528), (64, 1270610), (80, 1016488), (88, 924080), (110, 739264), (128, 635305), (160, 508244), (176, 462040), (220, 369632), (320, 254122), (352, 231020), (440, 184816), (640, 127061), (704, 115510), (880, 92408), (1408, 57755), (1760, 46204), (3520, 23102), (7040, 11551)]