1331440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 3615840

約数和(自身を除く): 2284400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 89, 110, 136, 170, 176, 178, 187, 220, 272, 340, 356, 374, 440, 445, 680, 712, 748, 880, 890, 935, 979, 1360, 1424, 1496, 1513, 1780, 1870, 1958, 2992, 3026, 3560, 3740, 3916, 4895, 6052, 7120, 7480, 7565, 7832, 9790, 12104, 14960, 15130, 15664, 16643, 19580, 24208, 30260, 33286, 39160, 60520, 66572, 78320, 83215, 121040, 133144, 166430, 266288, 332860, 665720, 1331440]

約数ペア:

[(1, 1331440), (2, 665720), (4, 332860), (5, 266288), (8, 166430), (10, 133144), (11, 121040), (16, 83215), (17, 78320), (20, 66572), (22, 60520), (34, 39160), (40, 33286), (44, 30260), (55, 24208), (68, 19580), (80, 16643), (85, 15664), (88, 15130), (89, 14960), (110, 12104), (136, 9790), (170, 7832), (176, 7565), (178, 7480), (187, 7120), (220, 6052), (272, 4895), (340, 3916), (356, 3740), (374, 3560), (440, 3026), (445, 2992), (680, 1958), (712, 1870), (748, 1780), (880, 1513), (890, 1496), (935, 1424), (979, 1360)]