2490990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1931}}^1$

素因数の和:1984

約数の個数: 32

約数和(自身を含む): 6120576

約数和(自身を除く): 3629586

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 1931, 3862, 5793, 9655, 11586, 19310, 28965, 57930, 83033, 166066, 249099, 415165, 498198, 830330, 1245495, 2490990]

約数ペア:

[(1, 2490990), (2, 1245495), (3, 830330), (5, 498198), (6, 415165), (10, 249099), (15, 166066), (30, 83033), (43, 57930), (86, 28965), (129, 19310), (215, 11586), (258, 9655), (430, 5793), (645, 3862), (1290, 1931)]