81738010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 77929190

約数列:

[1, 2, 5, 10, 31, 41, 59, 62, 82, 109, 118, 155, 205, 218, 295, 310, 410, 545, 590, 1090, 1271, 1829, 2419, 2542, 3379, 3658, 4469, 4838, 6355, 6431, 6758, 8938, 9145, 12095, 12710, 12862, 16895, 18290, 22345, 24190, 32155, 33790, 44690, 64310, 74989, 138539, 149978, 199361, 263671, 277078, 374945, 398722, 527342, 692695, 749890, 996805, 1318355, 1385390, 1993610, 2636710, 8173801, 16347602, 40869005, 81738010]

約数ペア:

[(1, 81738010), (2, 40869005), (5, 16347602), (10, 8173801), (31, 2636710), (41, 1993610), (59, 1385390), (62, 1318355), (82, 996805), (109, 749890), (118, 692695), (155, 527342), (205, 398722), (218, 374945), (295, 277078), (310, 263671), (410, 199361), (545, 149978), (590, 138539), (1090, 74989), (1271, 64310), (1829, 44690), (2419, 33790), (2542, 32155), (3379, 24190), (3658, 22345), (4469, 18290), (4838, 16895), (6355, 12862), (6431, 12710), (6758, 12095), (8938, 9145)]