991204480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{221251}}^1$

素因数の和:221277

約数の個数: 64

約数和(自身を含む): 2708124480

約数和(自身を除く): 1716920000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 221251, 442502, 885004, 1106255, 1548757, 1770008, 2212510, 3097514, 3540016, 4425020, 6195028, 7080032, 7743785, 8850040, 12390056, 14160064, 15487570, 17700080, 24780112, 28320128, 30975140, 35400160, 49560224, 61950280, 70800320, 99120448, 123900560, 141600640, 198240896, 247801120, 495602240, 991204480]

約数ペア:

[(1, 991204480), (2, 495602240), (4, 247801120), (5, 198240896), (7, 141600640), (8, 123900560), (10, 99120448), (14, 70800320), (16, 61950280), (20, 49560224), (28, 35400160), (32, 30975140), (35, 28320128), (40, 24780112), (56, 17700080), (64, 15487570), (70, 14160064), (80, 12390056), (112, 8850040), (128, 7743785), (140, 7080032), (160, 6195028), (224, 4425020), (280, 3540016), (320, 3097514), (448, 2212510), (560, 1770008), (640, 1548757), (896, 1106255), (1120, 885004), (2240, 442502), (4480, 221251)]