20200518

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{499}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 47502000

約数和(自身を除く): 27301482

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 173, 234, 346, 499, 519, 998, 1038, 1497, 1557, 2249, 2994, 3114, 4491, 4498, 6487, 6747, 8982, 12974, 13494, 19461, 20241, 38922, 40482, 58383, 86327, 116766, 172654, 258981, 517962, 776943, 1122251, 1553886, 2244502, 3366753, 6733506, 10100259, 20200518]

約数ペア:

[(1, 20200518), (2, 10100259), (3, 6733506), (6, 3366753), (9, 2244502), (13, 1553886), (18, 1122251), (26, 776943), (39, 517962), (78, 258981), (117, 172654), (173, 116766), (234, 86327), (346, 58383), (499, 40482), (519, 38922), (998, 20241), (1038, 19461), (1497, 13494), (1557, 12974), (2249, 8982), (2994, 6747), (3114, 6487), (4491, 4498)]