42540940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 97020000

約数和(自身を除く): 54479060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1249, 1310, 1703, 2498, 2620, 3406, 4996, 6245, 6812, 8515, 12490, 16237, 17030, 24980, 32474, 34060, 64948, 81185, 162370, 163619, 324740, 327238, 654476, 818095, 1636190, 2127047, 3272380, 4254094, 8508188, 10635235, 21270470, 42540940]

約数ペア:

[(1, 42540940), (2, 21270470), (4, 10635235), (5, 8508188), (10, 4254094), (13, 3272380), (20, 2127047), (26, 1636190), (52, 818095), (65, 654476), (130, 327238), (131, 324740), (260, 163619), (262, 162370), (524, 81185), (655, 64948), (1249, 34060), (1310, 32474), (1703, 24980), (2498, 17030), (2620, 16237), (3406, 12490), (4996, 8515), (6245, 6812)]