1291245140

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1\times {\mathrm{1231}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 2738292480

約数和(自身を除く): 1447047340

約数列:

[1, 2, 4, 5, 10, 20, 179, 293, 358, 586, 716, 895, 1172, 1231, 1465, 1790, 2462, 2930, 3580, 4924, 5860, 6155, 12310, 24620, 52447, 104894, 209788, 220349, 262235, 360683, 440698, 524470, 721366, 881396, 1048940, 1101745, 1442732, 1803415, 2203490, 3606830, 4406980, 7213660, 64562257, 129124514, 258249028, 322811285, 645622570, 1291245140]

約数ペア:

[(1, 1291245140), (2, 645622570), (4, 322811285), (5, 258249028), (10, 129124514), (20, 64562257), (179, 7213660), (293, 4406980), (358, 3606830), (586, 2203490), (716, 1803415), (895, 1442732), (1172, 1101745), (1231, 1048940), (1465, 881396), (1790, 721366), (2462, 524470), (2930, 440698), (3580, 360683), (4924, 262235), (5860, 220349), (6155, 209788), (12310, 104894), (24620, 52447)]