80788505

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 120835200

約数和(自身を除く): 40046695

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 163, 245, 289, 343, 595, 815, 833, 1141, 1445, 1715, 2023, 2771, 4165, 5705, 5831, 7987, 10115, 13855, 14161, 19397, 29155, 39935, 47107, 55909, 70805, 96985, 99127, 135779, 235535, 279545, 329749, 495635, 678895, 950453, 1648745, 2308243, 4752265, 11541215, 16157701, 80788505]

約数ペア:

[(1, 80788505), (5, 16157701), (7, 11541215), (17, 4752265), (35, 2308243), (49, 1648745), (85, 950453), (119, 678895), (163, 495635), (245, 329749), (289, 279545), (343, 235535), (595, 135779), (815, 99127), (833, 96985), (1141, 70805), (1445, 55909), (1715, 47107), (2023, 39935), (2771, 29155), (4165, 19397), (5705, 14161), (5831, 13855), (7987, 10115)]