172510120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 435456000

約数和(自身を除く): 262945880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 71, 76, 92, 95, 115, 139, 142, 152, 184, 190, 230, 278, 284, 355, 380, 437, 460, 556, 568, 695, 710, 760, 874, 920, 1112, 1349, 1390, 1420, 1633, 1748, 2185, 2641, 2698, 2780, 2840, 3197, 3266, 3496, 4370, 5282, 5396, 5560, 6394, 6532, 6745, 8165, 8740, 9869, 10564, 10792, 12788, 13064, 13205, 13490, 15985, 16330, 17480, 19738, 21128, 25576, 26410, 26980, 31027, 31970, 32660, 39476, 49345, 52820, 53960, 60743, 62054, 63940, 65320, 78952, 98690, 105640, 121486, 124108, 127880, 155135, 187511, 197380, 226987, 242972, 248216, 303715, 310270, 375022, 394760, 453974, 485944, 607430, 620540, 750044, 907948, 937555, 1134935, 1214860, 1241080, 1500088, 1815896, 1875110, 2269870, 2429720, 3750220, 4312753, 4539740, 7500440, 8625506, 9079480, 17251012, 21563765, 34502024, 43127530, 86255060, 172510120]

約数ペア:

[(1, 172510120), (2, 86255060), (4, 43127530), (5, 34502024), (8, 21563765), (10, 17251012), (19, 9079480), (20, 8625506), (23, 7500440), (38, 4539740), (40, 4312753), (46, 3750220), (71, 2429720), (76, 2269870), (92, 1875110), (95, 1815896), (115, 1500088), (139, 1241080), (142, 1214860), (152, 1134935), (184, 937555), (190, 907948), (230, 750044), (278, 620540), (284, 607430), (355, 485944), (380, 453974), (437, 394760), (460, 375022), (556, 310270), (568, 303715), (695, 248216), (710, 242972), (760, 226987), (874, 197380), (920, 187511), (1112, 155135), (1349, 127880), (1390, 124108), (1420, 121486), (1633, 105640), (1748, 98690), (2185, 78952), (2641, 65320), (2698, 63940), (2780, 62054), (2840, 60743), (3197, 53960), (3266, 52820), (3496, 49345), (4370, 39476), (5282, 32660), (5396, 31970), (5560, 31027), (6394, 26980), (6532, 26410), (6745, 25576), (8165, 21128), (8740, 19738), (9869, 17480), (10564, 16330), (10792, 15985), (12788, 13490), (13064, 13205)]