1330873640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{261983}}^1$

素因数の和:262121

約数の個数: 32

約数和(自身を含む): 3018055680

約数和(自身を除く): 1687182040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 261983, 523966, 1047932, 1309915, 2095864, 2619830, 5239660, 10479320, 33271841, 66543682, 133087364, 166359205, 266174728, 332718410, 665436820, 1330873640]

約数ペア:

[(1, 1330873640), (2, 665436820), (4, 332718410), (5, 266174728), (8, 166359205), (10, 133087364), (20, 66543682), (40, 33271841), (127, 10479320), (254, 5239660), (508, 2619830), (635, 2095864), (1016, 1309915), (1270, 1047932), (2540, 523966), (5080, 261983)]