321387992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{5171}}^1$

素因数の和:5651

約数の個数: 32

約数和(自身を含む): 639569520

約数和(自身を除く): 318181528

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 457, 914, 1828, 3656, 5171, 7769, 10342, 15538, 20684, 31076, 41368, 62152, 87907, 175814, 351628, 703256, 2363147, 4726294, 9452588, 18905176, 40173499, 80346998, 160693996, 321387992]

約数ペア:

[(1, 321387992), (2, 160693996), (4, 80346998), (8, 40173499), (17, 18905176), (34, 9452588), (68, 4726294), (136, 2363147), (457, 703256), (914, 351628), (1828, 175814), (3656, 87907), (5171, 62152), (7769, 41368), (10342, 31076), (15538, 20684)]