78528140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1049}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 174636000

約数和(自身を除く): 96107860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 197, 380, 394, 788, 985, 1049, 1970, 2098, 3743, 3940, 4196, 5245, 7486, 10490, 14972, 18715, 19931, 20980, 37430, 39862, 74860, 79724, 99655, 199310, 206653, 398620, 413306, 826612, 1033265, 2066530, 3926407, 4133060, 7852814, 15705628, 19632035, 39264070, 78528140]

約数ペア:

[(1, 78528140), (2, 39264070), (4, 19632035), (5, 15705628), (10, 7852814), (19, 4133060), (20, 3926407), (38, 2066530), (76, 1033265), (95, 826612), (190, 413306), (197, 398620), (380, 206653), (394, 199310), (788, 99655), (985, 79724), (1049, 74860), (1970, 39862), (2098, 37430), (3743, 20980), (3940, 19931), (4196, 18715), (5245, 14972), (7486, 10490)]