18715691890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2251}}^1\times {\mathrm{2897}}^1$

素因数の和:5203

約数の個数: 64

約数和(自身を含む): 39471038208

約数和(自身を除く): 20755346318

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2251, 2870, 2897, 4502, 5794, 11255, 14485, 15757, 20279, 22510, 28970, 31514, 40558, 78785, 92291, 101395, 118777, 157570, 184582, 202790, 237554, 461455, 593885, 646037, 831439, 922910, 1187770, 1292074, 1662878, 3230185, 4157195, 6460370, 6521147, 8314390, 13042294, 32605735, 45648029, 65211470, 91296058, 228240145, 267367027, 456480290, 534734054, 1336835135, 1871569189, 2673670270, 3743138378, 9357845945, 18715691890]

約数ペア:

[(1, 18715691890), (2, 9357845945), (5, 3743138378), (7, 2673670270), (10, 1871569189), (14, 1336835135), (35, 534734054), (41, 456480290), (70, 267367027), (82, 228240145), (205, 91296058), (287, 65211470), (410, 45648029), (574, 32605735), (1435, 13042294), (2251, 8314390), (2870, 6521147), (2897, 6460370), (4502, 4157195), (5794, 3230185), (11255, 1662878), (14485, 1292074), (15757, 1187770), (20279, 922910), (22510, 831439), (28970, 646037), (31514, 593885), (40558, 461455), (78785, 237554), (92291, 202790), (101395, 184582), (118777, 157570)]