68780340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{42457}}^1$

素因数の和:42478

約数の個数: 60

約数和(自身を含む): 215771556

約数和(自身を除く): 146991216

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 42457, 84914, 127371, 169828, 212285, 254742, 382113, 424570, 509484, 636855, 764226, 849140, 1146339, 1273710, 1528452, 1910565, 2292678, 2547420, 3439017, 3821130, 4585356, 5731695, 6878034, 7642260, 11463390, 13756068, 17195085, 22926780, 34390170, 68780340]

約数ペア:

[(1, 68780340), (2, 34390170), (3, 22926780), (4, 17195085), (5, 13756068), (6, 11463390), (9, 7642260), (10, 6878034), (12, 5731695), (15, 4585356), (18, 3821130), (20, 3439017), (27, 2547420), (30, 2292678), (36, 1910565), (45, 1528452), (54, 1273710), (60, 1146339), (81, 849140), (90, 764226), (108, 636855), (135, 509484), (162, 424570), (180, 382113), (270, 254742), (324, 212285), (405, 169828), (540, 127371), (810, 84914), (1620, 42457)]