12220880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 32914560

約数和(自身を除く): 20693680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 157, 278, 280, 314, 556, 560, 628, 695, 785, 973, 1099, 1112, 1256, 1390, 1570, 1946, 2198, 2224, 2512, 2780, 3140, 3892, 4396, 4865, 5495, 5560, 6280, 7784, 8792, 9730, 10990, 11120, 12560, 15568, 17584, 19460, 21823, 21980, 38920, 43646, 43960, 77840, 87292, 87920, 109115, 152761, 174584, 218230, 305522, 349168, 436460, 611044, 763805, 872920, 1222088, 1527610, 1745840, 2444176, 3055220, 6110440, 12220880]

約数ペア:

[(1, 12220880), (2, 6110440), (4, 3055220), (5, 2444176), (7, 1745840), (8, 1527610), (10, 1222088), (14, 872920), (16, 763805), (20, 611044), (28, 436460), (35, 349168), (40, 305522), (56, 218230), (70, 174584), (80, 152761), (112, 109115), (139, 87920), (140, 87292), (157, 77840), (278, 43960), (280, 43646), (314, 38920), (556, 21980), (560, 21823), (628, 19460), (695, 17584), (785, 15568), (973, 12560), (1099, 11120), (1112, 10990), (1256, 9730), (1390, 8792), (1570, 7784), (1946, 6280), (2198, 5560), (2224, 5495), (2512, 4865), (2780, 4396), (3140, 3892)]