279994880

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 160

約数和(自身を含む): 748934208

約数和(自身を除く): 468939328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 64, 80, 88, 110, 122, 128, 160, 163, 176, 220, 244, 256, 305, 320, 326, 352, 440, 488, 512, 610, 640, 652, 671, 704, 815, 880, 976, 1220, 1280, 1304, 1342, 1408, 1630, 1760, 1793, 1952, 2440, 2560, 2608, 2684, 2816, 3260, 3355, 3520, 3586, 3904, 4880, 5216, 5368, 5632, 6520, 6710, 7040, 7172, 7808, 8965, 9760, 9943, 10432, 10736, 13040, 13420, 14080, 14344, 15616, 17930, 19520, 19886, 20864, 21472, 26080, 26840, 28160, 28688, 31232, 35860, 39040, 39772, 41728, 42944, 49715, 52160, 53680, 57376, 71720, 78080, 79544, 83456, 85888, 99430, 104320, 107360, 109373, 114752, 143440, 156160, 159088, 171776, 198860, 208640, 214720, 218746, 229504, 286880, 318176, 343552, 397720, 417280, 429440, 437492, 459008, 546865, 573760, 636352, 795440, 858880, 874984, 918016, 1093730, 1147520, 1272704, 1590880, 1717760, 1749968, 2187460, 2295040, 2545408, 3181760, 3499936, 4374920, 4590080, 5090816, 6363520, 6999872, 8749840, 12727040, 13999744, 17499680, 25454080, 27999488, 34999360, 55998976, 69998720, 139997440, 279994880]

約数ペア:

[(1, 279994880), (2, 139997440), (4, 69998720), (5, 55998976), (8, 34999360), (10, 27999488), (11, 25454080), (16, 17499680), (20, 13999744), (22, 12727040), (32, 8749840), (40, 6999872), (44, 6363520), (55, 5090816), (61, 4590080), (64, 4374920), (80, 3499936), (88, 3181760), (110, 2545408), (122, 2295040), (128, 2187460), (160, 1749968), (163, 1717760), (176, 1590880), (220, 1272704), (244, 1147520), (256, 1093730), (305, 918016), (320, 874984), (326, 858880), (352, 795440), (440, 636352), (488, 573760), (512, 546865), (610, 459008), (640, 437492), (652, 429440), (671, 417280), (704, 397720), (815, 343552), (880, 318176), (976, 286880), (1220, 229504), (1280, 218746), (1304, 214720), (1342, 208640), (1408, 198860), (1630, 171776), (1760, 159088), (1793, 156160), (1952, 143440), (2440, 114752), (2560, 109373), (2608, 107360), (2684, 104320), (2816, 99430), (3260, 85888), (3355, 83456), (3520, 79544), (3586, 78080), (3904, 71720), (4880, 57376), (5216, 53680), (5368, 52160), (5632, 49715), (6520, 42944), (6710, 41728), (7040, 39772), (7172, 39040), (7808, 35860), (8965, 31232), (9760, 28688), (9943, 28160), (10432, 26840), (10736, 26080), (13040, 21472), (13420, 20864), (14080, 19886), (14344, 19520), (15616, 17930)]