12963890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 25738560

約数和(自身を除く): 12774670

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 71, 95, 142, 155, 190, 310, 355, 589, 710, 961, 1178, 1349, 1922, 2201, 2698, 2945, 4402, 4805, 5890, 6745, 9610, 11005, 13490, 18259, 22010, 36518, 41819, 68231, 83638, 91295, 136462, 182590, 209095, 341155, 418190, 682310, 1296389, 2592778, 6481945, 12963890]

約数ペア:

[(1, 12963890), (2, 6481945), (5, 2592778), (10, 1296389), (19, 682310), (31, 418190), (38, 341155), (62, 209095), (71, 182590), (95, 136462), (142, 91295), (155, 83638), (190, 68231), (310, 41819), (355, 36518), (589, 22010), (710, 18259), (961, 13490), (1178, 11005), (1349, 9610), (1922, 6745), (2201, 5890), (2698, 4805), (2945, 4402)]