1243059980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{2557}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 2647223040

約数和(自身を除く): 1404163060

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 223, 436, 446, 545, 892, 1090, 1115, 2180, 2230, 2557, 4460, 5114, 10228, 12785, 24307, 25570, 48614, 51140, 97228, 121535, 243070, 278713, 486140, 557426, 570211, 1114852, 1140422, 1393565, 2280844, 2787130, 2851055, 5574260, 5702110, 11404220, 62152999, 124305998, 248611996, 310764995, 621529990, 1243059980]

約数ペア:

[(1, 1243059980), (2, 621529990), (4, 310764995), (5, 248611996), (10, 124305998), (20, 62152999), (109, 11404220), (218, 5702110), (223, 5574260), (436, 2851055), (446, 2787130), (545, 2280844), (892, 1393565), (1090, 1140422), (1115, 1114852), (2180, 570211), (2230, 557426), (2557, 486140), (4460, 278713), (5114, 243070), (10228, 121535), (12785, 97228), (24307, 51140), (25570, 48614)]