80929480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 186624000

約数和(自身を除く): 105694520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 127, 178, 179, 254, 356, 358, 445, 508, 635, 712, 716, 890, 895, 1016, 1270, 1432, 1780, 1790, 2540, 3560, 3580, 5080, 7160, 11303, 15931, 22606, 22733, 31862, 45212, 45466, 56515, 63724, 79655, 90424, 90932, 113030, 113665, 127448, 159310, 181864, 226060, 227330, 318620, 452120, 454660, 637240, 909320, 2023237, 4046474, 8092948, 10116185, 16185896, 20232370, 40464740, 80929480]

約数ペア:

[(1, 80929480), (2, 40464740), (4, 20232370), (5, 16185896), (8, 10116185), (10, 8092948), (20, 4046474), (40, 2023237), (89, 909320), (127, 637240), (178, 454660), (179, 452120), (254, 318620), (356, 227330), (358, 226060), (445, 181864), (508, 159310), (635, 127448), (712, 113665), (716, 113030), (890, 90932), (895, 90424), (1016, 79655), (1270, 63724), (1432, 56515), (1780, 45466), (1790, 45212), (2540, 31862), (3560, 22733), (3580, 22606), (5080, 15931), (7160, 11303)]