1639182720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{121963}}^1$

素因数の和:121992

約数の個数: 128

約数和(自身を含む): 5971357440

約数和(自身を除く): 4332174720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 121963, 243926, 365889, 487852, 609815, 731778, 853741, 975704, 1219630, 1463556, 1707482, 1829445, 1951408, 2439260, 2561223, 2927112, 3414964, 3658890, 3902816, 4268705, 4878520, 5122446, 5854224, 6829928, 7317780, 7805632, 8537410, 9757040, 10244892, 11708448, 12806115, 13659856, 14635560, 15611264, 17074820, 19514080, 20489784, 23416896, 25612230, 27319712, 29271120, 34149640, 39028160, 40979568, 46833792, 51224460, 54639424, 58542240, 68299280, 78056320, 81959136, 102448920, 109278848, 117084480, 136598560, 163918272, 204897840, 234168960, 273197120, 327836544, 409795680, 546394240, 819591360, 1639182720]

約数ペア:

[(1, 1639182720), (2, 819591360), (3, 546394240), (4, 409795680), (5, 327836544), (6, 273197120), (7, 234168960), (8, 204897840), (10, 163918272), (12, 136598560), (14, 117084480), (15, 109278848), (16, 102448920), (20, 81959136), (21, 78056320), (24, 68299280), (28, 58542240), (30, 54639424), (32, 51224460), (35, 46833792), (40, 40979568), (42, 39028160), (48, 34149640), (56, 29271120), (60, 27319712), (64, 25612230), (70, 23416896), (80, 20489784), (84, 19514080), (96, 17074820), (105, 15611264), (112, 14635560), (120, 13659856), (128, 12806115), (140, 11708448), (160, 10244892), (168, 9757040), (192, 8537410), (210, 7805632), (224, 7317780), (240, 6829928), (280, 5854224), (320, 5122446), (336, 4878520), (384, 4268705), (420, 3902816), (448, 3658890), (480, 3414964), (560, 2927112), (640, 2561223), (672, 2439260), (840, 1951408), (896, 1829445), (960, 1707482), (1120, 1463556), (1344, 1219630), (1680, 975704), (1920, 853741), (2240, 731778), (2688, 609815), (3360, 487852), (4480, 365889), (6720, 243926), (13440, 121963)]