19554540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7949}}^1$

素因数の和:8002

約数の個数: 48

約数和(自身を含む): 56095200

約数和(自身を除く): 36540660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 7949, 15898, 23847, 31796, 39745, 47694, 79490, 95388, 119235, 158980, 238470, 325909, 476940, 651818, 977727, 1303636, 1629545, 1955454, 3259090, 3910908, 4888635, 6518180, 9777270, 19554540]

約数ペア:

[(1, 19554540), (2, 9777270), (3, 6518180), (4, 4888635), (5, 3910908), (6, 3259090), (10, 1955454), (12, 1629545), (15, 1303636), (20, 977727), (30, 651818), (41, 476940), (60, 325909), (82, 238470), (123, 158980), (164, 119235), (205, 95388), (246, 79490), (410, 47694), (492, 39745), (615, 31796), (820, 23847), (1230, 15898), (2460, 7949)]