131720960

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 368018112

約数和(自身を除く): 236297152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 241, 244, 256, 280, 305, 320, 427, 448, 482, 488, 560, 610, 640, 854, 896, 964, 976, 1120, 1205, 1220, 1280, 1687, 1708, 1792, 1928, 1952, 2135, 2240, 2410, 2440, 3374, 3416, 3856, 3904, 4270, 4480, 4820, 4880, 6748, 6832, 7712, 7808, 8435, 8540, 8960, 9640, 9760, 13496, 13664, 14701, 15424, 15616, 16870, 17080, 19280, 19520, 26992, 27328, 29402, 30848, 33740, 34160, 38560, 39040, 53984, 54656, 58804, 61696, 67480, 68320, 73505, 77120, 78080, 102907, 107968, 109312, 117608, 134960, 136640, 147010, 154240, 205814, 215936, 235216, 269920, 273280, 294020, 308480, 411628, 431872, 470432, 514535, 539840, 546560, 588040, 823256, 940864, 1029070, 1079680, 1176080, 1646512, 1881728, 2058140, 2159360, 2352160, 3293024, 3763456, 4116280, 4704320, 6586048, 8232560, 9408640, 13172096, 16465120, 18817280, 26344192, 32930240, 65860480, 131720960]

約数ペア:

[(1, 131720960), (2, 65860480), (4, 32930240), (5, 26344192), (7, 18817280), (8, 16465120), (10, 13172096), (14, 9408640), (16, 8232560), (20, 6586048), (28, 4704320), (32, 4116280), (35, 3763456), (40, 3293024), (56, 2352160), (61, 2159360), (64, 2058140), (70, 1881728), (80, 1646512), (112, 1176080), (122, 1079680), (128, 1029070), (140, 940864), (160, 823256), (224, 588040), (241, 546560), (244, 539840), (256, 514535), (280, 470432), (305, 431872), (320, 411628), (427, 308480), (448, 294020), (482, 273280), (488, 269920), (560, 235216), (610, 215936), (640, 205814), (854, 154240), (896, 147010), (964, 136640), (976, 134960), (1120, 117608), (1205, 109312), (1220, 107968), (1280, 102907), (1687, 78080), (1708, 77120), (1792, 73505), (1928, 68320), (1952, 67480), (2135, 61696), (2240, 58804), (2410, 54656), (2440, 53984), (3374, 39040), (3416, 38560), (3856, 34160), (3904, 33740), (4270, 30848), (4480, 29402), (4820, 27328), (4880, 26992), (6748, 19520), (6832, 19280), (7712, 17080), (7808, 16870), (8435, 15616), (8540, 15424), (8960, 14701), (9640, 13664), (9760, 13496)]