18864720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:242

約数の個数: 240

約数和(自身を含む): 76602240

約数和(自身を除く): 57737520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 197, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 394, 399, 420, 456, 504, 532, 560, 570, 591, 630, 665, 684, 720, 760, 788, 798, 840, 855, 912, 985, 1008, 1064, 1140, 1182, 1197, 1260, 1330, 1368, 1379, 1520, 1576, 1596, 1680, 1710, 1773, 1970, 1995, 2128, 2280, 2364, 2394, 2520, 2660, 2736, 2758, 2955, 3152, 3192, 3420, 3546, 3743, 3940, 3990, 4137, 4560, 4728, 4788, 5040, 5320, 5516, 5910, 5985, 6384, 6840, 6895, 7092, 7486, 7880, 7980, 8274, 8865, 9456, 9576, 10640, 11032, 11229, 11820, 11970, 12411, 13680, 13790, 14184, 14972, 15760, 15960, 16548, 17730, 18715, 19152, 20685, 22064, 22458, 23640, 23940, 24822, 26201, 27580, 28368, 29944, 31920, 33096, 33687, 35460, 37430, 41370, 44916, 47280, 47880, 49644, 52402, 55160, 56145, 59888, 62055, 66192, 67374, 70920, 74860, 78603, 82740, 89832, 95760, 99288, 104804, 110320, 112290, 124110, 131005, 134748, 141840, 149720, 157206, 165480, 168435, 179664, 198576, 209608, 224580, 235809, 248220, 262010, 269496, 299440, 314412, 330960, 336870, 393015, 419216, 449160, 471618, 496440, 524020, 538992, 628824, 673740, 786030, 898320, 943236, 992880, 1048040, 1179045, 1257648, 1347480, 1572060, 1886472, 2096080, 2358090, 2694960, 3144120, 3772944, 4716180, 6288240, 9432360, 18864720]

約数ペア:

[(1, 18864720), (2, 9432360), (3, 6288240), (4, 4716180), (5, 3772944), (6, 3144120), (7, 2694960), (8, 2358090), (9, 2096080), (10, 1886472), (12, 1572060), (14, 1347480), (15, 1257648), (16, 1179045), (18, 1048040), (19, 992880), (20, 943236), (21, 898320), (24, 786030), (28, 673740), (30, 628824), (35, 538992), (36, 524020), (38, 496440), (40, 471618), (42, 449160), (45, 419216), (48, 393015), (56, 336870), (57, 330960), (60, 314412), (63, 299440), (70, 269496), (72, 262010), (76, 248220), (80, 235809), (84, 224580), (90, 209608), (95, 198576), (105, 179664), (112, 168435), (114, 165480), (120, 157206), (126, 149720), (133, 141840), (140, 134748), (144, 131005), (152, 124110), (168, 112290), (171, 110320), (180, 104804), (190, 99288), (197, 95760), (210, 89832), (228, 82740), (240, 78603), (252, 74860), (266, 70920), (280, 67374), (285, 66192), (304, 62055), (315, 59888), (336, 56145), (342, 55160), (360, 52402), (380, 49644), (394, 47880), (399, 47280), (420, 44916), (456, 41370), (504, 37430), (532, 35460), (560, 33687), (570, 33096), (591, 31920), (630, 29944), (665, 28368), (684, 27580), (720, 26201), (760, 24822), (788, 23940), (798, 23640), (840, 22458), (855, 22064), (912, 20685), (985, 19152), (1008, 18715), (1064, 17730), (1140, 16548), (1182, 15960), (1197, 15760), (1260, 14972), (1330, 14184), (1368, 13790), (1379, 13680), (1520, 12411), (1576, 11970), (1596, 11820), (1680, 11229), (1710, 11032), (1773, 10640), (1970, 9576), (1995, 9456), (2128, 8865), (2280, 8274), (2364, 7980), (2394, 7880), (2520, 7486), (2660, 7092), (2736, 6895), (2758, 6840), (2955, 6384), (3152, 5985), (3192, 5910), (3420, 5516), (3546, 5320), (3743, 5040), (3940, 4788), (3990, 4728), (4137, 4560)]