15491320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^3$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 38787840

約数和(自身を除く): 23296520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 961, 1240, 1612, 1922, 2015, 3224, 3844, 4030, 4805, 7688, 8060, 9610, 12493, 16120, 19220, 24986, 29791, 38440, 49972, 59582, 62465, 99944, 119164, 124930, 148955, 238328, 249860, 297910, 387283, 499720, 595820, 774566, 1191640, 1549132, 1936415, 3098264, 3872830, 7745660, 15491320]

約数ペア:

[(1, 15491320), (2, 7745660), (4, 3872830), (5, 3098264), (8, 1936415), (10, 1549132), (13, 1191640), (20, 774566), (26, 595820), (31, 499720), (40, 387283), (52, 297910), (62, 249860), (65, 238328), (104, 148955), (124, 124930), (130, 119164), (155, 99944), (248, 62465), (260, 59582), (310, 49972), (403, 38440), (520, 29791), (620, 24986), (806, 19220), (961, 16120), (1240, 12493), (1612, 9610), (1922, 8060), (2015, 7688), (3224, 4805), (3844, 4030)]