28365680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^3$

素因数の和:131

約数の個数: 80

約数和(自身を含む): 77465280

約数和(自身を除く): 49099600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1369, 1480, 2072, 2590, 2738, 2960, 4144, 5180, 5476, 6845, 9583, 10360, 10952, 13690, 19166, 20720, 21904, 27380, 38332, 47915, 50653, 54760, 76664, 95830, 101306, 109520, 153328, 191660, 202612, 253265, 354571, 383320, 405224, 506530, 709142, 766640, 810448, 1013060, 1418284, 1772855, 2026120, 2836568, 3545710, 4052240, 5673136, 7091420, 14182840, 28365680]

約数ペア:

[(1, 28365680), (2, 14182840), (4, 7091420), (5, 5673136), (7, 4052240), (8, 3545710), (10, 2836568), (14, 2026120), (16, 1772855), (20, 1418284), (28, 1013060), (35, 810448), (37, 766640), (40, 709142), (56, 506530), (70, 405224), (74, 383320), (80, 354571), (112, 253265), (140, 202612), (148, 191660), (185, 153328), (259, 109520), (280, 101306), (296, 95830), (370, 76664), (518, 54760), (560, 50653), (592, 47915), (740, 38332), (1036, 27380), (1295, 21904), (1369, 20720), (1480, 19166), (2072, 13690), (2590, 10952), (2738, 10360), (2960, 9583), (4144, 6845), (5180, 5476)]