1220440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2347}}^1$

素因数の和:2371

約数の個数: 32

約数和(自身を含む): 2958480

約数和(自身を除く): 1738040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2347, 4694, 9388, 11735, 18776, 23470, 30511, 46940, 61022, 93880, 122044, 152555, 244088, 305110, 610220, 1220440]

約数ペア:

[(1, 1220440), (2, 610220), (4, 305110), (5, 244088), (8, 152555), (10, 122044), (13, 93880), (20, 61022), (26, 46940), (40, 30511), (52, 23470), (65, 18776), (104, 11735), (130, 9388), (260, 4694), (520, 2347)]