20880670

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 18229730

約数列:

[1, 2, 5, 10, 31, 62, 155, 193, 310, 349, 386, 698, 965, 1745, 1930, 3490, 5983, 10819, 11966, 21638, 29915, 54095, 59830, 67357, 108190, 134714, 336785, 673570, 2088067, 4176134, 10440335, 20880670]

約数ペア:

[(1, 20880670), (2, 10440335), (5, 4176134), (10, 2088067), (31, 673570), (62, 336785), (155, 134714), (193, 108190), (310, 67357), (349, 59830), (386, 54095), (698, 29915), (965, 21638), (1745, 11966), (1930, 10819), (3490, 5983)]