128435958

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{653}}^1$

素因数の和:898

約数の個数: 72

約数和(自身を含む): 325660608

約数和(自身を除く): 197224650

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 223, 294, 441, 446, 653, 669, 882, 1306, 1338, 1561, 1959, 2007, 3122, 3918, 4014, 4571, 4683, 5877, 9142, 9366, 10927, 11754, 13713, 14049, 21854, 27426, 28098, 31997, 32781, 41139, 63994, 65562, 82278, 95991, 98343, 145619, 191982, 196686, 287973, 291238, 436857, 575946, 873714, 1019333, 1310571, 2038666, 2621142, 3057999, 6115998, 7135331, 9173997, 14270662, 18347994, 21405993, 42811986, 64217979, 128435958]

約数ペア:

[(1, 128435958), (2, 64217979), (3, 42811986), (6, 21405993), (7, 18347994), (9, 14270662), (14, 9173997), (18, 7135331), (21, 6115998), (42, 3057999), (49, 2621142), (63, 2038666), (98, 1310571), (126, 1019333), (147, 873714), (223, 575946), (294, 436857), (441, 291238), (446, 287973), (653, 196686), (669, 191982), (882, 145619), (1306, 98343), (1338, 95991), (1561, 82278), (1959, 65562), (2007, 63994), (3122, 41139), (3918, 32781), (4014, 31997), (4571, 28098), (4683, 27426), (5877, 21854), (9142, 14049), (9366, 13713), (10927, 11754)]