19767940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1097}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 44824752

約数和(自身を除く): 25056812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1097, 1802, 2194, 3604, 4388, 4505, 5485, 9010, 10970, 18020, 18649, 21940, 37298, 58141, 74596, 93245, 116282, 186490, 232564, 290705, 372980, 581410, 988397, 1162820, 1976794, 3953588, 4941985, 9883970, 19767940]

約数ペア:

[(1, 19767940), (2, 9883970), (4, 4941985), (5, 3953588), (10, 1976794), (17, 1162820), (20, 988397), (34, 581410), (53, 372980), (68, 290705), (85, 232564), (106, 186490), (170, 116282), (212, 93245), (265, 74596), (340, 58141), (530, 37298), (901, 21940), (1060, 18649), (1097, 18020), (1802, 10970), (2194, 9010), (3604, 5485), (4388, 4505)]