213550020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2161}}^1$

素因数の和:2243

約数の個数: 120

約数和(自身を含む): 681211608

約数和(自身を除く): 467661588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 2161, 2196, 2745, 3294, 3660, 4322, 4941, 5490, 6483, 6588, 8235, 8644, 9882, 10805, 10980, 12966, 16470, 19449, 19764, 21610, 24705, 25932, 32415, 32940, 38898, 43220, 49410, 58347, 64830, 77796, 97245, 98820, 116694, 129660, 131821, 175041, 194490, 233388, 263642, 291735, 350082, 388980, 395463, 527284, 583470, 659105, 700164, 790926, 875205, 1166940, 1186389, 1318210, 1581852, 1750410, 1977315, 2372778, 2636420, 3500820, 3559167, 3954630, 4745556, 5931945, 7118334, 7909260, 10677501, 11863890, 14236668, 17795835, 21355002, 23727780, 35591670, 42710004, 53387505, 71183340, 106775010, 213550020]

約数ペア:

[(1, 213550020), (2, 106775010), (3, 71183340), (4, 53387505), (5, 42710004), (6, 35591670), (9, 23727780), (10, 21355002), (12, 17795835), (15, 14236668), (18, 11863890), (20, 10677501), (27, 7909260), (30, 7118334), (36, 5931945), (45, 4745556), (54, 3954630), (60, 3559167), (61, 3500820), (81, 2636420), (90, 2372778), (108, 1977315), (122, 1750410), (135, 1581852), (162, 1318210), (180, 1186389), (183, 1166940), (244, 875205), (270, 790926), (305, 700164), (324, 659105), (366, 583470), (405, 527284), (540, 395463), (549, 388980), (610, 350082), (732, 291735), (810, 263642), (915, 233388), (1098, 194490), (1220, 175041), (1620, 131821), (1647, 129660), (1830, 116694), (2161, 98820), (2196, 97245), (2745, 77796), (3294, 64830), (3660, 58347), (4322, 49410), (4941, 43220), (5490, 38898), (6483, 32940), (6588, 32415), (8235, 25932), (8644, 24705), (9882, 21610), (10805, 19764), (10980, 19449), (12966, 16470)]