278982480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{3389}}^1$

素因数の和:3426

約数の個数: 160

約数和(自身を含む): 1008864000

約数和(自身を除く): 729881520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1680, 1715, 1960, 2058, 2352, 2744, 2940, 3389, 3430, 3920, 4116, 5145, 5488, 5880, 6778, 6860, 8232, 10167, 10290, 11760, 13556, 13720, 16464, 16945, 20334, 20580, 23723, 27112, 27440, 33890, 40668, 41160, 47446, 50835, 54224, 67780, 71169, 81336, 82320, 94892, 101670, 118615, 135560, 142338, 162672, 166061, 189784, 203340, 237230, 271120, 284676, 332122, 355845, 379568, 406680, 474460, 498183, 569352, 664244, 711690, 813360, 830305, 948920, 996366, 1138704, 1162427, 1328488, 1423380, 1660610, 1897840, 1992732, 2324854, 2490915, 2656976, 2846760, 3321220, 3487281, 3985464, 4649708, 4981830, 5693520, 5812135, 6642440, 6974562, 7970928, 9299416, 9963660, 11624270, 13284880, 13949124, 17436405, 18598832, 19927320, 23248540, 27898248, 34872810, 39854640, 46497080, 55796496, 69745620, 92994160, 139491240, 278982480]

約数ペア:

[(1, 278982480), (2, 139491240), (3, 92994160), (4, 69745620), (5, 55796496), (6, 46497080), (7, 39854640), (8, 34872810), (10, 27898248), (12, 23248540), (14, 19927320), (15, 18598832), (16, 17436405), (20, 13949124), (21, 13284880), (24, 11624270), (28, 9963660), (30, 9299416), (35, 7970928), (40, 6974562), (42, 6642440), (48, 5812135), (49, 5693520), (56, 4981830), (60, 4649708), (70, 3985464), (80, 3487281), (84, 3321220), (98, 2846760), (105, 2656976), (112, 2490915), (120, 2324854), (140, 1992732), (147, 1897840), (168, 1660610), (196, 1423380), (210, 1328488), (240, 1162427), (245, 1138704), (280, 996366), (294, 948920), (336, 830305), (343, 813360), (392, 711690), (420, 664244), (490, 569352), (560, 498183), (588, 474460), (686, 406680), (735, 379568), (784, 355845), (840, 332122), (980, 284676), (1029, 271120), (1176, 237230), (1372, 203340), (1470, 189784), (1680, 166061), (1715, 162672), (1960, 142338), (2058, 135560), (2352, 118615), (2744, 101670), (2940, 94892), (3389, 82320), (3430, 81336), (3920, 71169), (4116, 67780), (5145, 54224), (5488, 50835), (5880, 47446), (6778, 41160), (6860, 40668), (8232, 33890), (10167, 27440), (10290, 27112), (11760, 23723), (13556, 20580), (13720, 20334), (16464, 16945)]