20145981405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{26947}}^1$

素因数の和:27186

約数の個数: 64

約数和(自身を含む): 36880386048

約数和(自身を除く): 16734404643

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 197, 253, 345, 591, 759, 985, 1265, 2167, 2955, 3795, 4531, 6501, 10835, 13593, 22655, 26947, 32505, 49841, 67965, 80841, 134735, 149523, 249205, 296417, 404205, 619781, 747615, 889251, 1482085, 1859343, 3098905, 4446255, 5308559, 6817591, 9296715, 15925677, 20452773, 26542795, 34087955, 58394149, 79628385, 102263865, 122096857, 175182447, 291970745, 366290571, 610484285, 875912235, 1343065427, 1831452855, 4029196281, 6715327135, 20145981405]

約数ペア:

[(1, 20145981405), (3, 6715327135), (5, 4029196281), (11, 1831452855), (15, 1343065427), (23, 875912235), (33, 610484285), (55, 366290571), (69, 291970745), (115, 175182447), (165, 122096857), (197, 102263865), (253, 79628385), (345, 58394149), (591, 34087955), (759, 26542795), (985, 20452773), (1265, 15925677), (2167, 9296715), (2955, 6817591), (3795, 5308559), (4531, 4446255), (6501, 3098905), (10835, 1859343), (13593, 1482085), (22655, 889251), (26947, 747615), (32505, 619781), (49841, 404205), (67965, 296417), (80841, 249205), (134735, 149523)]