812882020

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1\times {\mathrm{983}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 1725857280

約数和(自身を除く): 912975260

約数列:

[1, 2, 4, 5, 10, 20, 173, 239, 346, 478, 692, 865, 956, 983, 1195, 1730, 1966, 2390, 3460, 3932, 4780, 4915, 9830, 19660, 41347, 82694, 165388, 170059, 206735, 234937, 340118, 413470, 469874, 680236, 826940, 850295, 939748, 1174685, 1700590, 2349370, 3401180, 4698740, 40644101, 81288202, 162576404, 203220505, 406441010, 812882020]

約数ペア:

[(1, 812882020), (2, 406441010), (4, 203220505), (5, 162576404), (10, 81288202), (20, 40644101), (173, 4698740), (239, 3401180), (346, 2349370), (478, 1700590), (692, 1174685), (865, 939748), (956, 850295), (983, 826940), (1195, 680236), (1730, 469874), (1966, 413470), (2390, 340118), (3460, 234937), (3932, 206735), (4780, 170059), (4915, 165388), (9830, 82694), (19660, 41347)]