69171980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{523}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 154496160

約数和(自身を除く): 85324180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 389, 523, 778, 1046, 1556, 1945, 2092, 2615, 3890, 5230, 6613, 7780, 8891, 10460, 13226, 17782, 26452, 33065, 35564, 44455, 66130, 88910, 132260, 177820, 203447, 406894, 813788, 1017235, 2034470, 3458599, 4068940, 6917198, 13834396, 17292995, 34585990, 69171980]

約数ペア:

[(1, 69171980), (2, 34585990), (4, 17292995), (5, 13834396), (10, 6917198), (17, 4068940), (20, 3458599), (34, 2034470), (68, 1017235), (85, 813788), (170, 406894), (340, 203447), (389, 177820), (523, 132260), (778, 88910), (1046, 66130), (1556, 44455), (1945, 35564), (2092, 33065), (2615, 26452), (3890, 17782), (5230, 13226), (6613, 10460), (7780, 8891)]