31430412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 86224320

約数和(自身を除く): 54793908

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 239, 281, 468, 478, 562, 717, 843, 956, 1124, 1434, 1686, 2151, 2529, 2868, 3107, 3372, 3653, 4302, 5058, 6214, 7306, 8604, 9321, 10116, 10959, 12428, 14612, 18642, 21918, 27963, 32877, 37284, 43836, 55926, 65754, 67159, 111852, 131508, 134318, 201477, 268636, 402954, 604431, 805908, 873067, 1208862, 1746134, 2417724, 2619201, 3492268, 5238402, 7857603, 10476804, 15715206, 31430412]

約数ペア:

[(1, 31430412), (2, 15715206), (3, 10476804), (4, 7857603), (6, 5238402), (9, 3492268), (12, 2619201), (13, 2417724), (18, 1746134), (26, 1208862), (36, 873067), (39, 805908), (52, 604431), (78, 402954), (117, 268636), (156, 201477), (234, 134318), (239, 131508), (281, 111852), (468, 67159), (478, 65754), (562, 55926), (717, 43836), (843, 37284), (956, 32877), (1124, 27963), (1434, 21918), (1686, 18642), (2151, 14612), (2529, 12428), (2868, 10959), (3107, 10116), (3372, 9321), (3653, 8604), (4302, 7306), (5058, 6214)]