28734440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2503}}^1$

素因数の和:2562

約数の個数: 64

約数和(自身を含む): 75720960

約数和(自身を除く): 46986520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2503, 2870, 5006, 5740, 10012, 11480, 12515, 17521, 20024, 25030, 35042, 50060, 70084, 87605, 100120, 102623, 140168, 175210, 205246, 350420, 410492, 513115, 700840, 718361, 820984, 1026230, 1436722, 2052460, 2873444, 3591805, 4104920, 5746888, 7183610, 14367220, 28734440]

約数ペア:

[(1, 28734440), (2, 14367220), (4, 7183610), (5, 5746888), (7, 4104920), (8, 3591805), (10, 2873444), (14, 2052460), (20, 1436722), (28, 1026230), (35, 820984), (40, 718361), (41, 700840), (56, 513115), (70, 410492), (82, 350420), (140, 205246), (164, 175210), (205, 140168), (280, 102623), (287, 100120), (328, 87605), (410, 70084), (574, 50060), (820, 35042), (1148, 25030), (1435, 20024), (1640, 17521), (2296, 12515), (2503, 11480), (2870, 10012), (5006, 5740)]