20177021975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{443}}^1$

素因数の和:885

約数の個数: 96

約数和(自身を含む): 30126643200

約数和(自身を除く): 9949621225

約数列:

[1, 5, 11, 19, 23, 25, 55, 95, 115, 209, 253, 275, 379, 437, 443, 475, 575, 1045, 1265, 1895, 2185, 2215, 4169, 4807, 4873, 5225, 6325, 7201, 8417, 8717, 9475, 10189, 10925, 11075, 20845, 24035, 24365, 36005, 42085, 43585, 50945, 79211, 92587, 95887, 104225, 112079, 120175, 121825, 165623, 167897, 180025, 193591, 210425, 217925, 254725, 396055, 462935, 479435, 560395, 828115, 839485, 967955, 1821853, 1846867, 1980275, 2129501, 2314675, 2397175, 2801975, 3190043, 3861631, 4140575, 4197425, 4839775, 9109265, 9234335, 10647505, 15950215, 19308155, 35090473, 42477941, 45546325, 46171675, 53237525, 73370989, 79751075, 96540775, 175452365, 212389705, 366854945, 807080879, 877261825, 1061948525, 1834274725, 4035404395, 20177021975]

約数ペア:

[(1, 20177021975), (5, 4035404395), (11, 1834274725), (19, 1061948525), (23, 877261825), (25, 807080879), (55, 366854945), (95, 212389705), (115, 175452365), (209, 96540775), (253, 79751075), (275, 73370989), (379, 53237525), (437, 46171675), (443, 45546325), (475, 42477941), (575, 35090473), (1045, 19308155), (1265, 15950215), (1895, 10647505), (2185, 9234335), (2215, 9109265), (4169, 4839775), (4807, 4197425), (4873, 4140575), (5225, 3861631), (6325, 3190043), (7201, 2801975), (8417, 2397175), (8717, 2314675), (9475, 2129501), (10189, 1980275), (10925, 1846867), (11075, 1821853), (20845, 967955), (24035, 839485), (24365, 828115), (36005, 560395), (42085, 479435), (43585, 462935), (50945, 396055), (79211, 254725), (92587, 217925), (95887, 210425), (104225, 193591), (112079, 180025), (120175, 167897), (121825, 165623)]