81869100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 254983680

約数和(自身を除く): 173114580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 53, 57, 60, 75, 76, 95, 100, 106, 114, 150, 159, 190, 212, 228, 265, 271, 285, 300, 318, 380, 475, 530, 542, 570, 636, 795, 813, 950, 1007, 1060, 1084, 1140, 1325, 1355, 1425, 1590, 1626, 1900, 2014, 2650, 2710, 2850, 3021, 3180, 3252, 3975, 4028, 4065, 5035, 5149, 5300, 5420, 5700, 6042, 6775, 7950, 8130, 10070, 10298, 12084, 13550, 14363, 15105, 15447, 15900, 16260, 20140, 20325, 20596, 25175, 25745, 27100, 28726, 30210, 30894, 40650, 43089, 50350, 51490, 57452, 60420, 61788, 71815, 75525, 77235, 81300, 86178, 100700, 102980, 128725, 143630, 151050, 154470, 172356, 215445, 257450, 272897, 287260, 302100, 308940, 359075, 386175, 430890, 514900, 545794, 718150, 772350, 818691, 861780, 1077225, 1091588, 1364485, 1436300, 1544700, 1637382, 2154450, 2728970, 3274764, 4093455, 4308900, 5457940, 6822425, 8186910, 13644850, 16373820, 20467275, 27289700, 40934550, 81869100]

約数ペア:

[(1, 81869100), (2, 40934550), (3, 27289700), (4, 20467275), (5, 16373820), (6, 13644850), (10, 8186910), (12, 6822425), (15, 5457940), (19, 4308900), (20, 4093455), (25, 3274764), (30, 2728970), (38, 2154450), (50, 1637382), (53, 1544700), (57, 1436300), (60, 1364485), (75, 1091588), (76, 1077225), (95, 861780), (100, 818691), (106, 772350), (114, 718150), (150, 545794), (159, 514900), (190, 430890), (212, 386175), (228, 359075), (265, 308940), (271, 302100), (285, 287260), (300, 272897), (318, 257450), (380, 215445), (475, 172356), (530, 154470), (542, 151050), (570, 143630), (636, 128725), (795, 102980), (813, 100700), (950, 86178), (1007, 81300), (1060, 77235), (1084, 75525), (1140, 71815), (1325, 61788), (1355, 60420), (1425, 57452), (1590, 51490), (1626, 50350), (1900, 43089), (2014, 40650), (2650, 30894), (2710, 30210), (2850, 28726), (3021, 27100), (3180, 25745), (3252, 25175), (3975, 20596), (4028, 20325), (4065, 20140), (5035, 16260), (5149, 15900), (5300, 15447), (5420, 15105), (5700, 14363), (6042, 13550), (6775, 12084), (7950, 10298), (8130, 10070)]