205875488

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 533856960

約数和(自身を除く): 327981472

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 52, 56, 61, 76, 91, 104, 112, 122, 133, 152, 182, 208, 224, 244, 247, 266, 304, 364, 416, 427, 488, 494, 532, 608, 728, 793, 854, 976, 988, 1064, 1159, 1456, 1586, 1708, 1729, 1952, 1976, 2128, 2318, 2912, 3172, 3416, 3458, 3721, 3952, 4256, 4636, 5551, 6344, 6832, 6916, 7442, 7904, 8113, 9272, 11102, 12688, 13664, 13832, 14884, 15067, 16226, 18544, 22204, 25376, 26047, 27664, 29768, 30134, 32452, 37088, 44408, 48373, 52094, 55328, 59536, 60268, 64904, 70699, 88816, 96746, 104188, 105469, 119072, 120536, 129808, 141398, 177632, 193492, 208376, 210938, 241072, 259616, 282796, 338611, 386984, 416752, 421876, 482144, 494893, 565592, 677222, 773968, 833504, 843752, 919087, 989786, 1131184, 1354444, 1547936, 1687504, 1838174, 1979572, 2262368, 2708888, 3375008, 3676348, 3959144, 5417776, 6433609, 7352696, 7918288, 10835552, 12867218, 14705392, 15836576, 25734436, 29410784, 51468872, 102937744, 205875488]

約数ペア:

[(1, 205875488), (2, 102937744), (4, 51468872), (7, 29410784), (8, 25734436), (13, 15836576), (14, 14705392), (16, 12867218), (19, 10835552), (26, 7918288), (28, 7352696), (32, 6433609), (38, 5417776), (52, 3959144), (56, 3676348), (61, 3375008), (76, 2708888), (91, 2262368), (104, 1979572), (112, 1838174), (122, 1687504), (133, 1547936), (152, 1354444), (182, 1131184), (208, 989786), (224, 919087), (244, 843752), (247, 833504), (266, 773968), (304, 677222), (364, 565592), (416, 494893), (427, 482144), (488, 421876), (494, 416752), (532, 386984), (608, 338611), (728, 282796), (793, 259616), (854, 241072), (976, 210938), (988, 208376), (1064, 193492), (1159, 177632), (1456, 141398), (1586, 129808), (1708, 120536), (1729, 119072), (1952, 105469), (1976, 104188), (2128, 96746), (2318, 88816), (2912, 70699), (3172, 64904), (3416, 60268), (3458, 59536), (3721, 55328), (3952, 52094), (4256, 48373), (4636, 44408), (5551, 37088), (6344, 32452), (6832, 30134), (6916, 29768), (7442, 27664), (7904, 26047), (8113, 25376), (9272, 22204), (11102, 18544), (12688, 16226), (13664, 15067), (13832, 14884)]