21830240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 34053280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 76, 80, 86, 95, 152, 160, 167, 172, 190, 215, 304, 334, 344, 380, 430, 608, 668, 688, 760, 817, 835, 860, 1336, 1376, 1520, 1634, 1670, 1720, 2672, 3040, 3173, 3268, 3340, 3440, 4085, 5344, 6346, 6536, 6680, 6880, 7181, 8170, 12692, 13072, 13360, 14362, 15865, 16340, 25384, 26144, 26720, 28724, 31730, 32680, 35905, 50768, 57448, 63460, 65360, 71810, 101536, 114896, 126920, 130720, 136439, 143620, 229792, 253840, 272878, 287240, 507680, 545756, 574480, 682195, 1091512, 1148960, 1364390, 2183024, 2728780, 4366048, 5457560, 10915120, 21830240]

約数ペア:

[(1, 21830240), (2, 10915120), (4, 5457560), (5, 4366048), (8, 2728780), (10, 2183024), (16, 1364390), (19, 1148960), (20, 1091512), (32, 682195), (38, 574480), (40, 545756), (43, 507680), (76, 287240), (80, 272878), (86, 253840), (95, 229792), (152, 143620), (160, 136439), (167, 130720), (172, 126920), (190, 114896), (215, 101536), (304, 71810), (334, 65360), (344, 63460), (380, 57448), (430, 50768), (608, 35905), (668, 32680), (688, 31730), (760, 28724), (817, 26720), (835, 26144), (860, 25384), (1336, 16340), (1376, 15865), (1520, 14362), (1634, 13360), (1670, 13072), (1720, 12692), (2672, 8170), (3040, 7181), (3173, 6880), (3268, 6680), (3340, 6536), (3440, 6346), (4085, 5344)]