399324254

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 768268800

約数和(自身を除く): 368944546

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 233, 238, 266, 323, 379, 466, 646, 758, 1631, 2261, 2653, 3262, 3961, 4427, 4522, 5306, 6443, 7201, 7922, 8854, 12886, 14402, 27727, 30989, 45101, 50407, 55454, 61978, 75259, 88307, 90202, 100814, 122417, 150518, 176614, 244834, 526813, 618149, 856919, 1053626, 1236298, 1501219, 1677833, 1713838, 3002438, 3355666, 10508533, 11744831, 21017066, 23489662, 28523161, 57046322, 199662127, 399324254]

約数ペア:

[(1, 399324254), (2, 199662127), (7, 57046322), (14, 28523161), (17, 23489662), (19, 21017066), (34, 11744831), (38, 10508533), (119, 3355666), (133, 3002438), (233, 1713838), (238, 1677833), (266, 1501219), (323, 1236298), (379, 1053626), (466, 856919), (646, 618149), (758, 526813), (1631, 244834), (2261, 176614), (2653, 150518), (3262, 122417), (3961, 100814), (4427, 90202), (4522, 88307), (5306, 75259), (6443, 61978), (7201, 55454), (7922, 50407), (8854, 45101), (12886, 30989), (14402, 27727)]