1215209560

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1\times {\mathrm{967}}^1$

素因数の和:1420

約数の個数: 64

約数和(自身を含む): 2775643200

約数和(自身を除く): 1560433640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 353, 356, 445, 706, 712, 890, 967, 1412, 1765, 1780, 1934, 2824, 3530, 3560, 3868, 4835, 7060, 7736, 9670, 14120, 19340, 31417, 38680, 62834, 86063, 125668, 157085, 172126, 251336, 314170, 341351, 344252, 430315, 628340, 682702, 688504, 860630, 1256680, 1365404, 1706755, 1721260, 2730808, 3413510, 3442520, 6827020, 13654040, 30380239, 60760478, 121520956, 151901195, 243041912, 303802390, 607604780, 1215209560]

約数ペア:

[(1, 1215209560), (2, 607604780), (4, 303802390), (5, 243041912), (8, 151901195), (10, 121520956), (20, 60760478), (40, 30380239), (89, 13654040), (178, 6827020), (353, 3442520), (356, 3413510), (445, 2730808), (706, 1721260), (712, 1706755), (890, 1365404), (967, 1256680), (1412, 860630), (1765, 688504), (1780, 682702), (1934, 628340), (2824, 430315), (3530, 344252), (3560, 341351), (3868, 314170), (4835, 251336), (7060, 172126), (7736, 157085), (9670, 125668), (14120, 86063), (19340, 62834), (31417, 38680)]