21136080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:593

約数の個数: 160

約数和(自身を含む): 78280704

約数和(自身を除く): 57144624

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 547, 552, 560, 644, 690, 805, 840, 920, 966, 1094, 1104, 1288, 1380, 1610, 1641, 1680, 1840, 1932, 2188, 2415, 2576, 2735, 2760, 3220, 3282, 3829, 3864, 4376, 4830, 5470, 5520, 6440, 6564, 7658, 7728, 8205, 8752, 9660, 10940, 11487, 12581, 12880, 13128, 15316, 16410, 19145, 19320, 21880, 22974, 25162, 26256, 30632, 32820, 37743, 38290, 38640, 43760, 45948, 50324, 57435, 61264, 62905, 65640, 75486, 76580, 88067, 91896, 100648, 114870, 125810, 131280, 150972, 153160, 176134, 183792, 188715, 201296, 229740, 251620, 264201, 301944, 306320, 352268, 377430, 440335, 459480, 503240, 528402, 603888, 704536, 754860, 880670, 918960, 1006480, 1056804, 1321005, 1409072, 1509720, 1761340, 2113608, 2642010, 3019440, 3522680, 4227216, 5284020, 7045360, 10568040, 21136080]

約数ペア:

[(1, 21136080), (2, 10568040), (3, 7045360), (4, 5284020), (5, 4227216), (6, 3522680), (7, 3019440), (8, 2642010), (10, 2113608), (12, 1761340), (14, 1509720), (15, 1409072), (16, 1321005), (20, 1056804), (21, 1006480), (23, 918960), (24, 880670), (28, 754860), (30, 704536), (35, 603888), (40, 528402), (42, 503240), (46, 459480), (48, 440335), (56, 377430), (60, 352268), (69, 306320), (70, 301944), (80, 264201), (84, 251620), (92, 229740), (105, 201296), (112, 188715), (115, 183792), (120, 176134), (138, 153160), (140, 150972), (161, 131280), (168, 125810), (184, 114870), (210, 100648), (230, 91896), (240, 88067), (276, 76580), (280, 75486), (322, 65640), (336, 62905), (345, 61264), (368, 57435), (420, 50324), (460, 45948), (483, 43760), (547, 38640), (552, 38290), (560, 37743), (644, 32820), (690, 30632), (805, 26256), (840, 25162), (920, 22974), (966, 21880), (1094, 19320), (1104, 19145), (1288, 16410), (1380, 15316), (1610, 13128), (1641, 12880), (1680, 12581), (1840, 11487), (1932, 10940), (2188, 9660), (2415, 8752), (2576, 8205), (2735, 7728), (2760, 7658), (3220, 6564), (3282, 6440), (3829, 5520), (3864, 5470), (4376, 4830)]