1217840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1171}}^1$

素因数の和:1197

約数の個数: 40

約数和(自身を含む): 3051888

約数和(自身を除く): 1834048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1171, 2342, 4684, 5855, 9368, 11710, 15223, 18736, 23420, 30446, 46840, 60892, 76115, 93680, 121784, 152230, 243568, 304460, 608920, 1217840]

約数ペア:

[(1, 1217840), (2, 608920), (4, 304460), (5, 243568), (8, 152230), (10, 121784), (13, 93680), (16, 76115), (20, 60892), (26, 46840), (40, 30446), (52, 23420), (65, 18736), (80, 15223), (104, 11710), (130, 9368), (208, 5855), (260, 4684), (520, 2342), (1040, 1171)]