18649960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1610

約数の個数: 64

約数和(自身を含む): 49104000

約数和(自身を除く): 30454040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1549, 1720, 2408, 3010, 3098, 6020, 6196, 7745, 10843, 12040, 12392, 15490, 21686, 30980, 43372, 54215, 61960, 66607, 86744, 108430, 133214, 216860, 266428, 333035, 433720, 466249, 532856, 666070, 932498, 1332140, 1864996, 2331245, 2664280, 3729992, 4662490, 9324980, 18649960]

約数ペア:

[(1, 18649960), (2, 9324980), (4, 4662490), (5, 3729992), (7, 2664280), (8, 2331245), (10, 1864996), (14, 1332140), (20, 932498), (28, 666070), (35, 532856), (40, 466249), (43, 433720), (56, 333035), (70, 266428), (86, 216860), (140, 133214), (172, 108430), (215, 86744), (280, 66607), (301, 61960), (344, 54215), (430, 43372), (602, 30980), (860, 21686), (1204, 15490), (1505, 12392), (1549, 12040), (1720, 10843), (2408, 7745), (3010, 6196), (3098, 6020)]