19245080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 25993960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 167, 172, 215, 268, 334, 335, 344, 430, 536, 668, 670, 835, 860, 1336, 1340, 1670, 1720, 2680, 2881, 3340, 5762, 6680, 7181, 11189, 11524, 14362, 14405, 22378, 23048, 28724, 28810, 35905, 44756, 55945, 57448, 57620, 71810, 89512, 111890, 115240, 143620, 223780, 287240, 447560, 481127, 962254, 1924508, 2405635, 3849016, 4811270, 9622540, 19245080]

約数ペア:

[(1, 19245080), (2, 9622540), (4, 4811270), (5, 3849016), (8, 2405635), (10, 1924508), (20, 962254), (40, 481127), (43, 447560), (67, 287240), (86, 223780), (134, 143620), (167, 115240), (172, 111890), (215, 89512), (268, 71810), (334, 57620), (335, 57448), (344, 55945), (430, 44756), (536, 35905), (668, 28810), (670, 28724), (835, 23048), (860, 22378), (1336, 14405), (1340, 14362), (1670, 11524), (1720, 11189), (2680, 7181), (2881, 6680), (3340, 5762)]