201980516

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 371226240

約数和(自身を除く): 169245724

約数列:

[1, 2, 4, 61, 71, 89, 122, 131, 142, 178, 244, 262, 284, 356, 524, 4331, 5429, 6319, 7991, 8662, 9301, 10858, 11659, 12638, 15982, 17324, 18602, 21716, 23318, 25276, 31964, 37204, 46636, 385459, 567361, 711199, 770918, 827789, 1134722, 1422398, 1541836, 1655578, 2269444, 2844796, 3311156, 50495129, 100990258, 201980516]

約数ペア:

[(1, 201980516), (2, 100990258), (4, 50495129), (61, 3311156), (71, 2844796), (89, 2269444), (122, 1655578), (131, 1541836), (142, 1422398), (178, 1134722), (244, 827789), (262, 770918), (284, 711199), (356, 567361), (524, 385459), (4331, 46636), (5429, 37204), (6319, 31964), (7991, 25276), (8662, 23318), (9301, 21716), (10858, 18602), (11659, 17324), (12638, 15982)]