86980880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{22189}}^1$

素因数の和:22216

約数の個数: 60

約数和(自身を含む): 235258380

約数和(自身を除く): 148277500

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 22189, 44378, 88756, 110945, 155323, 177512, 221890, 310646, 355024, 443780, 621292, 776615, 887560, 1087261, 1242584, 1553230, 1775120, 2174522, 2485168, 3106460, 4349044, 5436305, 6212920, 8698088, 10872610, 12425840, 17396176, 21745220, 43490440, 86980880]

約数ペア:

[(1, 86980880), (2, 43490440), (4, 21745220), (5, 17396176), (7, 12425840), (8, 10872610), (10, 8698088), (14, 6212920), (16, 5436305), (20, 4349044), (28, 3106460), (35, 2485168), (40, 2174522), (49, 1775120), (56, 1553230), (70, 1242584), (80, 1087261), (98, 887560), (112, 776615), (140, 621292), (196, 443780), (245, 355024), (280, 310646), (392, 221890), (490, 177512), (560, 155323), (784, 110945), (980, 88756), (1960, 44378), (3920, 22189)]