1274480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 40

約数和(自身を含む): 3013200

約数和(自身を除く): 1738720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 179, 356, 358, 445, 712, 716, 890, 895, 1424, 1432, 1780, 1790, 2864, 3560, 3580, 7120, 7160, 14320, 15931, 31862, 63724, 79655, 127448, 159310, 254896, 318620, 637240, 1274480]

約数ペア:

[(1, 1274480), (2, 637240), (4, 318620), (5, 254896), (8, 159310), (10, 127448), (16, 79655), (20, 63724), (40, 31862), (80, 15931), (89, 14320), (178, 7160), (179, 7120), (356, 3580), (358, 3560), (445, 2864), (712, 1790), (716, 1780), (890, 1432), (895, 1424)]