30500920

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1553}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 68811120

約数和(自身を除く): 38310200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1553, 1964, 2455, 3106, 3928, 4910, 6212, 7765, 9820, 12424, 15530, 19640, 31060, 62120, 762523, 1525046, 3050092, 3812615, 6100184, 7625230, 15250460, 30500920]

約数ペア:

[(1, 30500920), (2, 15250460), (4, 7625230), (5, 6100184), (8, 3812615), (10, 3050092), (20, 1525046), (40, 762523), (491, 62120), (982, 31060), (1553, 19640), (1964, 15530), (2455, 12424), (3106, 9820), (3928, 7765), (4910, 6212)]