217200340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{883}}^1$

素因数の和:1157

約数の個数: 72

約数和(自身を含む): 533306592

約数和(自身を除く): 316106252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 490, 502, 883, 980, 1004, 1255, 1757, 1766, 2510, 3514, 3532, 4415, 5020, 6181, 7028, 8785, 8830, 12299, 12362, 17570, 17660, 24598, 24724, 30905, 35140, 43267, 49196, 61495, 61810, 86534, 122990, 123620, 173068, 216335, 221633, 245980, 432670, 443266, 865340, 886532, 1108165, 1551431, 2216330, 3102862, 4432660, 6205724, 7757155, 10860017, 15514310, 21720034, 31028620, 43440068, 54300085, 108600170, 217200340]

約数ペア:

[(1, 217200340), (2, 108600170), (4, 54300085), (5, 43440068), (7, 31028620), (10, 21720034), (14, 15514310), (20, 10860017), (28, 7757155), (35, 6205724), (49, 4432660), (70, 3102862), (98, 2216330), (140, 1551431), (196, 1108165), (245, 886532), (251, 865340), (490, 443266), (502, 432670), (883, 245980), (980, 221633), (1004, 216335), (1255, 173068), (1757, 123620), (1766, 122990), (2510, 86534), (3514, 61810), (3532, 61495), (4415, 49196), (5020, 43267), (6181, 35140), (7028, 30905), (8785, 24724), (8830, 24598), (12299, 17660), (12362, 17570)]