20151937668

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{639257}}^1$

素因数の和:639372

約数の個数: 48

約数和(自身を含む): 48972276864

約数和(自身を除く): 28820339196

約数列:

[1, 2, 3, 4, 6, 12, 37, 71, 74, 111, 142, 148, 213, 222, 284, 426, 444, 852, 2627, 5254, 7881, 10508, 15762, 31524, 639257, 1278514, 1917771, 2557028, 3835542, 7671084, 23652509, 45387247, 47305018, 70957527, 90774494, 94610036, 136161741, 141915054, 181548988, 272323482, 283830108, 544646964, 1679328139, 3358656278, 5037984417, 6717312556, 10075968834, 20151937668]

約数ペア:

[(1, 20151937668), (2, 10075968834), (3, 6717312556), (4, 5037984417), (6, 3358656278), (12, 1679328139), (37, 544646964), (71, 283830108), (74, 272323482), (111, 181548988), (142, 141915054), (148, 136161741), (213, 94610036), (222, 90774494), (284, 70957527), (426, 47305018), (444, 45387247), (852, 23652509), (2627, 7671084), (5254, 3835542), (7881, 2557028), (10508, 1917771), (15762, 1278514), (31524, 639257)]