81538164

素因数分解:

$2^2\times 3^5\times {\mathrm{149}}^1\times {\mathrm{563}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 215560800

約数和(自身を除く): 134022636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 149, 162, 243, 298, 324, 447, 486, 563, 596, 894, 972, 1126, 1341, 1689, 1788, 2252, 2682, 3378, 4023, 5067, 5364, 6756, 8046, 10134, 12069, 15201, 16092, 20268, 24138, 30402, 36207, 45603, 48276, 60804, 72414, 83887, 91206, 136809, 144828, 167774, 182412, 251661, 273618, 335548, 503322, 547236, 754983, 1006644, 1509966, 2264949, 3019932, 4529898, 6794847, 9059796, 13589694, 20384541, 27179388, 40769082, 81538164]

約数ペア:

[(1, 81538164), (2, 40769082), (3, 27179388), (4, 20384541), (6, 13589694), (9, 9059796), (12, 6794847), (18, 4529898), (27, 3019932), (36, 2264949), (54, 1509966), (81, 1006644), (108, 754983), (149, 547236), (162, 503322), (243, 335548), (298, 273618), (324, 251661), (447, 182412), (486, 167774), (563, 144828), (596, 136809), (894, 91206), (972, 83887), (1126, 72414), (1341, 60804), (1689, 48276), (1788, 45603), (2252, 36207), (2682, 30402), (3378, 24138), (4023, 20268), (5067, 16092), (5364, 15201), (6756, 12069), (8046, 10134)]