12872960

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 31457160

約数和(自身を除く): 18584200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 113, 128, 160, 178, 226, 256, 320, 356, 445, 452, 565, 640, 712, 890, 904, 1130, 1280, 1424, 1780, 1808, 2260, 2848, 3560, 3616, 4520, 5696, 7120, 7232, 9040, 10057, 11392, 14240, 14464, 18080, 20114, 22784, 28480, 28928, 36160, 40228, 50285, 56960, 72320, 80456, 100570, 113920, 144640, 160912, 201140, 321824, 402280, 643648, 804560, 1287296, 1609120, 2574592, 3218240, 6436480, 12872960]

約数ペア:

[(1, 12872960), (2, 6436480), (4, 3218240), (5, 2574592), (8, 1609120), (10, 1287296), (16, 804560), (20, 643648), (32, 402280), (40, 321824), (64, 201140), (80, 160912), (89, 144640), (113, 113920), (128, 100570), (160, 80456), (178, 72320), (226, 56960), (256, 50285), (320, 40228), (356, 36160), (445, 28928), (452, 28480), (565, 22784), (640, 20114), (712, 18080), (890, 14464), (904, 14240), (1130, 11392), (1280, 10057), (1424, 9040), (1780, 7232), (1808, 7120), (2260, 5696), (2848, 4520), (3560, 3616)]