208722780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{165653}}^1$

素因数の和:165675

約数の個数: 72

約数和(自身を含む): 723576672

約数和(自身を除く): 514853892

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 165653, 331306, 496959, 662612, 828265, 993918, 1159571, 1490877, 1656530, 1987836, 2319142, 2484795, 2981754, 3313060, 3478713, 4638284, 4969590, 5797855, 5963508, 6957426, 7454385, 9939180, 10436139, 11595710, 13914852, 14908770, 17393565, 20872278, 23191420, 29817540, 34787130, 41744556, 52180695, 69574260, 104361390, 208722780]

約数ペア:

[(1, 208722780), (2, 104361390), (3, 69574260), (4, 52180695), (5, 41744556), (6, 34787130), (7, 29817540), (9, 23191420), (10, 20872278), (12, 17393565), (14, 14908770), (15, 13914852), (18, 11595710), (20, 10436139), (21, 9939180), (28, 7454385), (30, 6957426), (35, 5963508), (36, 5797855), (42, 4969590), (45, 4638284), (60, 3478713), (63, 3313060), (70, 2981754), (84, 2484795), (90, 2319142), (105, 1987836), (126, 1656530), (140, 1490877), (180, 1159571), (210, 993918), (252, 828265), (315, 662612), (420, 496959), (630, 331306), (1260, 165653)]