421640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 967680

約数和(自身を除く): 546040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 127, 166, 254, 332, 415, 508, 635, 664, 830, 1016, 1270, 1660, 2540, 3320, 5080, 10541, 21082, 42164, 52705, 84328, 105410, 210820, 421640]

約数ペア:

[(1, 421640), (2, 210820), (4, 105410), (5, 84328), (8, 52705), (10, 42164), (20, 21082), (40, 10541), (83, 5080), (127, 3320), (166, 2540), (254, 1660), (332, 1270), (415, 1016), (508, 830), (635, 664)]