1640720456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{1217}}^1$

素因数の和:1694

約数の個数: 64

約数和(自身を含む): 3409620480

約数和(自身を除く): 1768900024

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 431, 782, 862, 1217, 1564, 1724, 2434, 3128, 3448, 4868, 7327, 9736, 9913, 14654, 19826, 20689, 27991, 29308, 39652, 41378, 55982, 58616, 79304, 82756, 111964, 165512, 168521, 223928, 337042, 475847, 524527, 674084, 951694, 1049054, 1348168, 1903388, 2098108, 3806776, 4196216, 8916959, 12064121, 17833918, 24128242, 35667836, 48256484, 71335672, 96512968, 205090057, 410180114, 820360228, 1640720456]

約数ペア:

[(1, 1640720456), (2, 820360228), (4, 410180114), (8, 205090057), (17, 96512968), (23, 71335672), (34, 48256484), (46, 35667836), (68, 24128242), (92, 17833918), (136, 12064121), (184, 8916959), (391, 4196216), (431, 3806776), (782, 2098108), (862, 1903388), (1217, 1348168), (1564, 1049054), (1724, 951694), (2434, 674084), (3128, 524527), (3448, 475847), (4868, 337042), (7327, 223928), (9736, 168521), (9913, 165512), (14654, 111964), (19826, 82756), (20689, 79304), (27991, 58616), (29308, 55982), (39652, 41378)]