71685640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4447}}^1$

素因数の和:4502

約数の個数: 64

約数和(自身を含む): 179343360

約数和(自身を除く): 107657720

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, 1240, 1612, 2015, 3224, 4030, 4447, 8060, 8894, 16120, 17788, 22235, 35576, 44470, 57811, 88940, 115622, 137857, 177880, 231244, 275714, 289055, 462488, 551428, 578110, 689285, 1102856, 1156220, 1378570, 1792141, 2312440, 2757140, 3584282, 5514280, 7168564, 8960705, 14337128, 17921410, 35842820, 71685640]

約数ペア:

[(1, 71685640), (2, 35842820), (4, 17921410), (5, 14337128), (8, 8960705), (10, 7168564), (13, 5514280), (20, 3584282), (26, 2757140), (31, 2312440), (40, 1792141), (52, 1378570), (62, 1156220), (65, 1102856), (104, 689285), (124, 578110), (130, 551428), (155, 462488), (248, 289055), (260, 275714), (310, 231244), (403, 177880), (520, 137857), (620, 115622), (806, 88940), (1240, 57811), (1612, 44470), (2015, 35576), (3224, 22235), (4030, 17788), (4447, 16120), (8060, 8894)]