204080220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4951}}^1$

素因数の和:5195

約数の個数: 72

約数和(自身を含む): 621872160

約数和(自身を除く): 417791940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 1145, 1374, 2061, 2290, 2748, 3435, 4122, 4580, 4951, 6870, 8244, 9902, 10305, 13740, 14853, 19804, 20610, 24755, 29706, 41220, 44559, 49510, 59412, 74265, 89118, 99020, 148530, 178236, 222795, 297060, 445590, 891180, 1133779, 2267558, 3401337, 4535116, 5668895, 6802674, 10204011, 11337790, 13605348, 17006685, 20408022, 22675580, 34013370, 40816044, 51020055, 68026740, 102040110, 204080220]

約数ペア:

[(1, 204080220), (2, 102040110), (3, 68026740), (4, 51020055), (5, 40816044), (6, 34013370), (9, 22675580), (10, 20408022), (12, 17006685), (15, 13605348), (18, 11337790), (20, 10204011), (30, 6802674), (36, 5668895), (45, 4535116), (60, 3401337), (90, 2267558), (180, 1133779), (229, 891180), (458, 445590), (687, 297060), (916, 222795), (1145, 178236), (1374, 148530), (2061, 99020), (2290, 89118), (2748, 74265), (3435, 59412), (4122, 49510), (4580, 44559), (4951, 41220), (6870, 29706), (8244, 24755), (9902, 20610), (10305, 19804), (13740, 14853)]