13021520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1171}}^1$

素因数の和:1323

約数の個数: 40

約数和(自身を含む): 30518880

約数和(自身を除く): 17497360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1171, 1390, 2224, 2342, 2780, 4684, 5560, 5855, 9368, 11120, 11710, 18736, 23420, 46840, 93680, 162769, 325538, 651076, 813845, 1302152, 1627690, 2604304, 3255380, 6510760, 13021520]

約数ペア:

[(1, 13021520), (2, 6510760), (4, 3255380), (5, 2604304), (8, 1627690), (10, 1302152), (16, 813845), (20, 651076), (40, 325538), (80, 162769), (139, 93680), (278, 46840), (556, 23420), (695, 18736), (1112, 11710), (1171, 11120), (1390, 9368), (2224, 5855), (2342, 5560), (2780, 4684)]