18385220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3203}}^1$

素因数の和:3260

約数の個数: 48

約数和(自身を含む): 45214848

約数和(自身を除く): 26829628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3203, 5740, 6406, 12812, 16015, 22421, 32030, 44842, 64060, 89684, 112105, 131323, 224210, 262646, 448420, 525292, 656615, 919261, 1313230, 1838522, 2626460, 3677044, 4596305, 9192610, 18385220]

約数ペア:

[(1, 18385220), (2, 9192610), (4, 4596305), (5, 3677044), (7, 2626460), (10, 1838522), (14, 1313230), (20, 919261), (28, 656615), (35, 525292), (41, 448420), (70, 262646), (82, 224210), (140, 131323), (164, 112105), (205, 89684), (287, 64060), (410, 44842), (574, 32030), (820, 22421), (1148, 16015), (1435, 12812), (2870, 6406), (3203, 5740)]