80405550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{907}}^1$

素因数の和:1122

約数の個数: 72

約数和(自身を含む): 217358856

約数和(自身を除く): 136953306

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 197, 225, 394, 450, 591, 907, 985, 1182, 1773, 1814, 1970, 2721, 2955, 3546, 4535, 4925, 5442, 5910, 8163, 8865, 9070, 9850, 13605, 14775, 16326, 17730, 22675, 27210, 29550, 40815, 44325, 45350, 68025, 81630, 88650, 136050, 178679, 204075, 357358, 408150, 536037, 893395, 1072074, 1608111, 1786790, 2680185, 3216222, 4466975, 5360370, 8040555, 8933950, 13400925, 16081110, 26801850, 40202775, 80405550]

約数ペア:

[(1, 80405550), (2, 40202775), (3, 26801850), (5, 16081110), (6, 13400925), (9, 8933950), (10, 8040555), (15, 5360370), (18, 4466975), (25, 3216222), (30, 2680185), (45, 1786790), (50, 1608111), (75, 1072074), (90, 893395), (150, 536037), (197, 408150), (225, 357358), (394, 204075), (450, 178679), (591, 136050), (907, 88650), (985, 81630), (1182, 68025), (1773, 45350), (1814, 44325), (1970, 40815), (2721, 29550), (2955, 27210), (3546, 22675), (4535, 17730), (4925, 16326), (5442, 14775), (5910, 13605), (8163, 9850), (8865, 9070)]