20802180045

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{554503}}^1$

素因数の和:554613

約数の個数: 32

約数和(自身を含む): 34654281984

約数和(自身を除く): 13852101939

約数列:

[1, 3, 5, 15, 41, 61, 123, 183, 205, 305, 615, 915, 2501, 7503, 12505, 37515, 554503, 1663509, 2772515, 8317545, 22734623, 33824683, 68203869, 101474049, 113673115, 169123415, 341019345, 507370245, 1386812003, 4160436009, 6934060015, 20802180045]

約数ペア:

[(1, 20802180045), (3, 6934060015), (5, 4160436009), (15, 1386812003), (41, 507370245), (61, 341019345), (123, 169123415), (183, 113673115), (205, 101474049), (305, 68203869), (615, 33824683), (915, 22734623), (2501, 8317545), (7503, 2772515), (12505, 1663509), (37515, 554503)]