278968716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 808735200

約数和(自身を除く): 529766484

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 137, 156, 171, 228, 229, 234, 247, 274, 342, 411, 458, 468, 494, 548, 684, 687, 741, 822, 916, 988, 1233, 1374, 1482, 1644, 1781, 2061, 2223, 2466, 2603, 2748, 2964, 2977, 3562, 4122, 4351, 4446, 4932, 5206, 5343, 5954, 7124, 7809, 8244, 8702, 8892, 8931, 10412, 10686, 11908, 13053, 15618, 16029, 17404, 17862, 21372, 23427, 26106, 26793, 31236, 31373, 32058, 33839, 35724, 39159, 46854, 52212, 53586, 56563, 62746, 64116, 67678, 78318, 93708, 94119, 101517, 107172, 113126, 125492, 135356, 156636, 169689, 188238, 203034, 226252, 282357, 304551, 339378, 376476, 406068, 407849, 509067, 564714, 596087, 609102, 678756, 815698, 1018134, 1129428, 1192174, 1218204, 1223547, 1631396, 1788261, 2036268, 2384348, 2447094, 3576522, 3670641, 4894188, 5364783, 7153044, 7341282, 7749131, 10729566, 14682564, 15498262, 21459132, 23247393, 30996524, 46494786, 69742179, 92989572, 139484358, 278968716]

約数ペア:

[(1, 278968716), (2, 139484358), (3, 92989572), (4, 69742179), (6, 46494786), (9, 30996524), (12, 23247393), (13, 21459132), (18, 15498262), (19, 14682564), (26, 10729566), (36, 7749131), (38, 7341282), (39, 7153044), (52, 5364783), (57, 4894188), (76, 3670641), (78, 3576522), (114, 2447094), (117, 2384348), (137, 2036268), (156, 1788261), (171, 1631396), (228, 1223547), (229, 1218204), (234, 1192174), (247, 1129428), (274, 1018134), (342, 815698), (411, 678756), (458, 609102), (468, 596087), (494, 564714), (548, 509067), (684, 407849), (687, 406068), (741, 376476), (822, 339378), (916, 304551), (988, 282357), (1233, 226252), (1374, 203034), (1482, 188238), (1644, 169689), (1781, 156636), (2061, 135356), (2223, 125492), (2466, 113126), (2603, 107172), (2748, 101517), (2964, 94119), (2977, 93708), (3562, 78318), (4122, 67678), (4351, 64116), (4446, 62746), (4932, 56563), (5206, 53586), (5343, 52212), (5954, 46854), (7124, 39159), (7809, 35724), (8244, 33839), (8702, 32058), (8892, 31373), (8931, 31236), (10412, 26793), (10686, 26106), (11908, 23427), (13053, 21372), (15618, 17862), (16029, 17404)]