1217723990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{9901}}^1$

素因数の和:10173

約数の個数: 48

約数和(自身を含む): 2560181904

約数和(自身を除く): 1342457914

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 251, 490, 502, 1255, 1757, 2510, 3514, 8785, 9901, 12299, 17570, 19802, 24598, 49505, 61495, 69307, 99010, 122990, 138614, 346535, 485149, 693070, 970298, 2425745, 2485151, 4851490, 4970302, 12425755, 17396057, 24851510, 34792114, 86980285, 121772399, 173960570, 243544798, 608861995, 1217723990]

約数ペア:

[(1, 1217723990), (2, 608861995), (5, 243544798), (7, 173960570), (10, 121772399), (14, 86980285), (35, 34792114), (49, 24851510), (70, 17396057), (98, 12425755), (245, 4970302), (251, 4851490), (490, 2485151), (502, 2425745), (1255, 970298), (1757, 693070), (2510, 485149), (3514, 346535), (8785, 138614), (9901, 122990), (12299, 99010), (17570, 69307), (19802, 61495), (24598, 49505)]