20297870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1597}}^1$

素因数の和:1676

約数の個数: 32

約数和(自身を含む): 38658816

約数和(自身を除く): 18360946

約数列:

[1, 2, 5, 10, 31, 41, 62, 82, 155, 205, 310, 410, 1271, 1597, 2542, 3194, 6355, 7985, 12710, 15970, 49507, 65477, 99014, 130954, 247535, 327385, 495070, 654770, 2029787, 4059574, 10148935, 20297870]

約数ペア:

[(1, 20297870), (2, 10148935), (5, 4059574), (10, 2029787), (31, 654770), (41, 495070), (62, 327385), (82, 247535), (155, 130954), (205, 99014), (310, 65477), (410, 49507), (1271, 15970), (1597, 12710), (2542, 7985), (3194, 6355)]