19599880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3121}}^1$

素因数の和:3289

約数の個数: 32

約数和(自身を含む): 44394840

約数和(自身を除く): 24794960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3121, 3140, 6242, 6280, 12484, 15605, 24968, 31210, 62420, 124840, 489997, 979994, 1959988, 2449985, 3919976, 4899970, 9799940, 19599880]

約数ペア:

[(1, 19599880), (2, 9799940), (4, 4899970), (5, 3919976), (8, 2449985), (10, 1959988), (20, 979994), (40, 489997), (157, 124840), (314, 62420), (628, 31210), (785, 24968), (1256, 15605), (1570, 12484), (3121, 6280), (3140, 6242)]