127609720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 128

約数和(自身を含む): 342144000

約数和(自身を除く): 214534280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 131, 140, 142, 196, 245, 262, 280, 284, 343, 355, 392, 490, 497, 524, 568, 655, 686, 710, 917, 980, 994, 1048, 1310, 1372, 1420, 1715, 1834, 1960, 1988, 2485, 2620, 2744, 2840, 3430, 3479, 3668, 3976, 4585, 4970, 5240, 6419, 6860, 6958, 7336, 9170, 9301, 9940, 12838, 13720, 13916, 17395, 18340, 18602, 19880, 24353, 25676, 27832, 32095, 34790, 36680, 37204, 44933, 46505, 48706, 51352, 64190, 65107, 69580, 74408, 89866, 93010, 97412, 121765, 128380, 130214, 139160, 179732, 186020, 194824, 224665, 243530, 256760, 260428, 325535, 359464, 372040, 449330, 455749, 487060, 520856, 651070, 898660, 911498, 974120, 1302140, 1797320, 1822996, 2278745, 2604280, 3190243, 3645992, 4557490, 6380486, 9114980, 12760972, 15951215, 18229960, 25521944, 31902430, 63804860, 127609720]

約数ペア:

[(1, 127609720), (2, 63804860), (4, 31902430), (5, 25521944), (7, 18229960), (8, 15951215), (10, 12760972), (14, 9114980), (20, 6380486), (28, 4557490), (35, 3645992), (40, 3190243), (49, 2604280), (56, 2278745), (70, 1822996), (71, 1797320), (98, 1302140), (131, 974120), (140, 911498), (142, 898660), (196, 651070), (245, 520856), (262, 487060), (280, 455749), (284, 449330), (343, 372040), (355, 359464), (392, 325535), (490, 260428), (497, 256760), (524, 243530), (568, 224665), (655, 194824), (686, 186020), (710, 179732), (917, 139160), (980, 130214), (994, 128380), (1048, 121765), (1310, 97412), (1372, 93010), (1420, 89866), (1715, 74408), (1834, 69580), (1960, 65107), (1988, 64190), (2485, 51352), (2620, 48706), (2744, 46505), (2840, 44933), (3430, 37204), (3479, 36680), (3668, 34790), (3976, 32095), (4585, 27832), (4970, 25676), (5240, 24353), (6419, 19880), (6860, 18602), (6958, 18340), (7336, 17395), (9170, 13916), (9301, 13720), (9940, 12838)]