28239970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1723}}^1$

素因数の和:1890

約数の個数: 32

約数和(自身を含む): 55857600

約数和(自身を除く): 27617630

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1490, 1639, 1723, 3278, 3446, 8195, 8615, 16390, 17230, 18953, 37906, 94765, 189530, 256727, 513454, 1283635, 2567270, 2823997, 5647994, 14119985, 28239970]

約数ペア:

[(1, 28239970), (2, 14119985), (5, 5647994), (10, 2823997), (11, 2567270), (22, 1283635), (55, 513454), (110, 256727), (149, 189530), (298, 94765), (745, 37906), (1490, 18953), (1639, 17230), (1723, 16390), (3278, 8615), (3446, 8195)]