20740610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 41856696

約数和(自身を除く): 21116086

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 121, 122, 242, 281, 305, 562, 605, 610, 671, 1210, 1342, 1405, 2810, 3091, 3355, 6182, 6710, 7381, 14762, 15455, 17141, 30910, 34001, 34282, 36905, 68002, 73810, 85705, 170005, 171410, 188551, 340010, 377102, 942755, 1885510, 2074061, 4148122, 10370305, 20740610]

約数ペア:

[(1, 20740610), (2, 10370305), (5, 4148122), (10, 2074061), (11, 1885510), (22, 942755), (55, 377102), (61, 340010), (110, 188551), (121, 171410), (122, 170005), (242, 85705), (281, 73810), (305, 68002), (562, 36905), (605, 34282), (610, 34001), (671, 30910), (1210, 17141), (1342, 15455), (1405, 14762), (2810, 7381), (3091, 6710), (3355, 6182)]