890347965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 1568426496

約数和(自身を除く): 678078531

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 103, 195, 291, 309, 457, 485, 515, 1261, 1339, 1371, 1455, 1545, 2285, 3783, 4017, 5941, 6305, 6695, 6855, 9991, 17823, 18915, 20085, 29705, 29973, 44329, 47071, 49955, 89115, 129883, 132987, 141213, 149865, 221645, 235355, 389649, 576277, 611923, 649415, 664935, 706065, 1728831, 1835769, 1948245, 2881385, 3059615, 4565887, 8644155, 9178845, 13697661, 22829435, 59356531, 68488305, 178069593, 296782655, 890347965]

約数ペア:

[(1, 890347965), (3, 296782655), (5, 178069593), (13, 68488305), (15, 59356531), (39, 22829435), (65, 13697661), (97, 9178845), (103, 8644155), (195, 4565887), (291, 3059615), (309, 2881385), (457, 1948245), (485, 1835769), (515, 1728831), (1261, 706065), (1339, 664935), (1371, 649415), (1455, 611923), (1545, 576277), (2285, 389649), (3783, 235355), (4017, 221645), (5941, 149865), (6305, 141213), (6695, 132987), (6855, 129883), (9991, 89115), (17823, 49955), (18915, 47071), (20085, 44329), (29705, 29973)]