28574360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 67716000

約数和(自身を除く): 39141640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 449, 740, 860, 898, 1480, 1591, 1720, 1796, 2245, 3182, 3592, 4490, 6364, 7955, 8980, 12728, 15910, 16613, 17960, 19307, 31820, 33226, 38614, 63640, 66452, 77228, 83065, 96535, 132904, 154456, 166130, 193070, 332260, 386140, 664520, 714359, 772280, 1428718, 2857436, 3571795, 5714872, 7143590, 14287180, 28574360]

約数ペア:

[(1, 28574360), (2, 14287180), (4, 7143590), (5, 5714872), (8, 3571795), (10, 2857436), (20, 1428718), (37, 772280), (40, 714359), (43, 664520), (74, 386140), (86, 332260), (148, 193070), (172, 166130), (185, 154456), (215, 132904), (296, 96535), (344, 83065), (370, 77228), (430, 66452), (449, 63640), (740, 38614), (860, 33226), (898, 31820), (1480, 19307), (1591, 17960), (1720, 16613), (1796, 15910), (2245, 12728), (3182, 8980), (3592, 7955), (4490, 6364)]