81771050

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 157891680

約数和(自身を除く): 76120630

約数列:

[1, 2, 5, 10, 25, 50, 53, 59, 106, 118, 265, 295, 523, 530, 590, 1046, 1325, 1475, 2615, 2650, 2950, 3127, 5230, 6254, 13075, 15635, 26150, 27719, 30857, 31270, 55438, 61714, 78175, 138595, 154285, 156350, 277190, 308570, 692975, 771425, 1385950, 1542850, 1635421, 3270842, 8177105, 16354210, 40885525, 81771050]

約数ペア:

[(1, 81771050), (2, 40885525), (5, 16354210), (10, 8177105), (25, 3270842), (50, 1635421), (53, 1542850), (59, 1385950), (106, 771425), (118, 692975), (265, 308570), (295, 277190), (523, 156350), (530, 154285), (590, 138595), (1046, 78175), (1325, 61714), (1475, 55438), (2615, 31270), (2650, 30857), (2950, 27719), (3127, 26150), (5230, 15635), (6254, 13075)]