31513780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 70318080

約数和(自身を除く): 38804300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 508, 635, 653, 1270, 1306, 2413, 2540, 2612, 3265, 4826, 6530, 9652, 12065, 12407, 13060, 24130, 24814, 48260, 49628, 62035, 82931, 124070, 165862, 248140, 331724, 414655, 829310, 1575689, 1658620, 3151378, 6302756, 7878445, 15756890, 31513780]

約数ペア:

[(1, 31513780), (2, 15756890), (4, 7878445), (5, 6302756), (10, 3151378), (19, 1658620), (20, 1575689), (38, 829310), (76, 414655), (95, 331724), (127, 248140), (190, 165862), (254, 124070), (380, 82931), (508, 62035), (635, 49628), (653, 48260), (1270, 24814), (1306, 24130), (2413, 13060), (2540, 12407), (2612, 12065), (3265, 9652), (4826, 6530)]