128367540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{101879}}^1$

素因数の和:101901

約数の個数: 72

約数和(自身を含む): 445011840

約数和(自身を除く): 316644300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 101879, 203758, 305637, 407516, 509395, 611274, 713153, 916911, 1018790, 1222548, 1426306, 1528185, 1833822, 2037580, 2139459, 2852612, 3056370, 3565765, 3667644, 4278918, 4584555, 6112740, 6418377, 7131530, 8557836, 9169110, 10697295, 12836754, 14263060, 18338220, 21394590, 25673508, 32091885, 42789180, 64183770, 128367540]

約数ペア:

[(1, 128367540), (2, 64183770), (3, 42789180), (4, 32091885), (5, 25673508), (6, 21394590), (7, 18338220), (9, 14263060), (10, 12836754), (12, 10697295), (14, 9169110), (15, 8557836), (18, 7131530), (20, 6418377), (21, 6112740), (28, 4584555), (30, 4278918), (35, 3667644), (36, 3565765), (42, 3056370), (45, 2852612), (60, 2139459), (63, 2037580), (70, 1833822), (84, 1528185), (90, 1426306), (105, 1222548), (126, 1018790), (140, 916911), (180, 713153), (210, 611274), (252, 509395), (315, 407516), (420, 305637), (630, 203758), (1260, 101879)]